87090256 has 40 divisors (see below), whose sum is σ = 184657824. Its totient is φ = 39461760.

The previous prime is 87090247. The next prime is 87090271. The reversal of 87090256 is 65209078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77410 + ... + 78526.

Almost surely, 2^87090256 is an apocalyptic number.

It is an amenable number.

87090256 is an abundant number, since it is smaller than the sum of its proper divisors (97567568).

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

87090256 is a wasteful number, since it uses less digits than its factorization.

87090256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 87090256 is about 9332.2160283611. The cubic root of 87090256 is about 443.2579385736.

The spelling of 87090256 in words is "eighty-seven million, ninety thousand, two hundred fifty-six".