2164886 has 4 divisors (see below), whose sum is σ = 3247332. Its totient is φ = 1082442.

The previous prime is 2164859. The next prime is 2164901. The reversal of 2164886 is 6884612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541220 + ... + 541223.

It is an arithmetic number, because the mean of its divisors is an integer number (811833).

2^2164886 is an apocalyptic number.

2164886 is a deficient number, since it is larger than the sum of its proper divisors (1082446).

2164886 is a wasteful number, since it uses less digits than its factorization.

2164886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082445.

The product of its digits is 18432, while the sum is 35.

The square root of 2164886 is about 1471.3551576693. The cubic root of 2164886 is about 129.3634762231.

The spelling of 2164886 in words is "two million, one hundred sixty-four thousand, eight hundred eighty-six".