87615028 has 12 divisors (see below), whose sum is σ = 153392512. Its totient is φ = 43788600.

The previous prime is 87615019. The next prime is 87615067. The reversal of 87615028 is 82051678.

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 3 ways as a sum of consecutive naturals, for example, 13501 + ... + 18907.

Almost surely, 2^87615028 is an apocalyptic number.

It is an amenable number.

87615028 is a deficient number, since it is larger than the sum of its proper divisors (65777484).

87615028 is a wasteful number, since it uses less digits than its factorization.

87615028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462 (or 9460 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 87615028 is about 9360.2899527739. The cubic root of 87615028 is about 444.1464562978.

The spelling of 87615028 in words is "eighty-seven million, six hundred fifteen thousand, twenty-eight".