87970928 has 20 divisors (see below), whose sum is σ = 170775528. Its totient is φ = 43899840.

The previous prime is 87970919. The next prime is 87970943. The reversal of 87970928 is 82907978.

It is a happy number.

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, 3575 + ... + 13737.

Almost surely, 2^87970928 is an apocalyptic number.

It is an amenable number.

87970928 is a deficient number, since it is larger than the sum of its proper divisors (82804600).

87970928 is a wasteful number, since it uses less digits than its factorization.

87970928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712 (or 10706 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 87970928 is about 9379.2818488411. The cubic root of 87970928 is about 444.7470312423.

The spelling of 87970928 in words is "eighty-seven million, nine hundred seventy thousand, nine hundred twenty-eight".