87667256 has 32 divisors (see below), whose sum is σ = 171763200. Its totient is φ = 41898720.

The previous prime is 87667243. The next prime is 87667291. The reversal of 87667256 is 65276678.

It is a self number, because there is not a number n which added to its sum of digits gives 87667256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18455 + ... + 22713.

It is an arithmetic number, because the mean of its divisors is an integer number (5367600).

Almost surely, 2^87667256 is an apocalyptic number.

It is an amenable number.

87667256 is a deficient number, since it is larger than the sum of its proper divisors (84095944).

87667256 is a wasteful number, since it uses less digits than its factorization.

87667256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379 (or 4375 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 87667256 is about 9363.0794079726. The cubic root of 87667256 is about 444.2346918205.

The spelling of 87667256 in words is "eighty-seven million, six hundred sixty-seven thousand, two hundred fifty-six".