87057628 has 24 divisors (see below), whose sum is σ = 178166912. Its totient is φ = 36442224.

The previous prime is 87057617. The next prime is 87057679. The reversal of 87057628 is 82675078.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 34950 + ... + 37357.

Almost surely, 2^87057628 is an apocalyptic number.

It is an amenable number.

87057628 is an abundant number, since it is smaller than the sum of its proper divisors (91109284).

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

87057628 is a wasteful number, since it uses less digits than its factorization.

87057628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72361 (or 72359 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 87057628 is about 9330.4677267541. The cubic root of 87057628 is about 443.2025767487.

The spelling of 87057628 in words is "eighty-seven million, fifty-seven thousand, six hundred twenty-eight".