2147387 has 6 divisors (see below), whose sum is σ = 2360484. Its totient is φ = 1952060.

The previous prime is 2147381. The next prime is 2147407. The reversal of 2147387 is 7837412.

It is a happy number.

It is not a de Polignac number, because 2147387 - 2¹⁶ = 2081851 is a prime.

It is a super-2 number, since 2×2147387² = 9222541855538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8753 + ... + 8994.

It is an arithmetic number, because the mean of its divisors is an integer number (393414).

2^2147387 is an apocalyptic number.

2147387 is a deficient number, since it is larger than the sum of its proper divisors (213097).

2147387 is a wasteful number, since it uses less digits than its factorization.

2147387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17769 (or 17758 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 2147387 is about 1465.3965333656. The cubic root of 2147387 is about 129.0139800165.

The spelling of 2147387 in words is "two million, one hundred forty-seven thousand, three hundred eighty-seven".