87915236 has 12 divisors (see below), whose sum is σ = 154378812. Its totient is φ = 43807008.

The previous prime is 87915187. The next prime is 87915257. The reversal of 87915236 is 63251978.

It can be written as a sum of positive squares in 2 ways, for example, as 84529636 + 3385600 = 9194^2 + 1840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87915193 and 87915202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36335 + ... + 38678.

It is an arithmetic number, because the mean of its divisors is an integer number (12864901).

Almost surely, 2^87915236 is an apocalyptic number.

It is an amenable number.

87915236 is a deficient number, since it is larger than the sum of its proper divisors (66463576).

87915236 is a wasteful number, since it uses less digits than its factorization.

87915236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75310 (or 75308 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 87915236 is about 9376.3124947924. The cubic root of 87915236 is about 444.6531590170.

The spelling of 87915236 in words is "eighty-seven million, nine hundred fifteen thousand, two hundred thirty-six".