87890368 has 28 divisors (see below), whose sum is σ = 175317912. Its totient is φ = 43715840.

The previous prime is 87890359. The next prime is 87890393. The reversal of 87890368 is 86309878.

It is a happy number.

It is a congruent number.

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, 9123 + ... + 16093.

It is an arithmetic number, because the mean of its divisors is an integer number (6261354).

Almost surely, 2^87890368 is an apocalyptic number.

It is an amenable number.

87890368 is a deficient number, since it is larger than the sum of its proper divisors (87427544).

87890368 is a wasteful number, since it uses less digits than its factorization.

87890368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180 (or 7170 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 87890368 is about 9374.9862933233. The cubic root of 87890368 is about 444.6112296995.

The spelling of 87890368 in words is "eighty-seven million, eight hundred ninety thousand, three hundred sixty-eight".