2147886 has 48 divisors (see below), whose sum is σ = 5123664. Its totient is φ = 646272.

The previous prime is 2147881. The next prime is 2147903. The reversal of 2147886 is 6887412.

2147886 = 145² + 146² + ... + 211².

It is a super-2 number, since 2×2147886² = 9226828537992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 4⁵ + 7⁵ + 8⁵ + 8⁷ + 6 .

It is a self number, because there is not a number n which added to its sum of digits gives 2147886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15610 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (106743).

2^2147886 is an apocalyptic number.

2147886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2147886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2561832).

2147886 is an abundant number, since it is smaller than the sum of its proper divisors (2975778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147886 is a wasteful number, since it uses less digits than its factorization.

2147886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 222 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2147886 is about 1465.5667845581. The cubic root of 2147886 is about 129.0239724693.

It can be divided in two parts, 214 and 7886, that added together give a square (8100 = 90²).

The spelling of 2147886 in words is "two million, one hundred forty-seven thousand, eight hundred eighty-six".