87905396 has 12 divisors (see below), whose sum is σ = 154391748. Its totient is φ = 43793472.

The previous prime is 87905387. The next prime is 87905401. The reversal of 87905396 is 69350978.

It can be written as a sum of positive squares in 2 ways, for example, as 11971600 + 75933796 = 3460^2 + 8714^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 87905396.

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, 38561 + ... + 40776.

It is an arithmetic number, because the mean of its divisors is an integer number (12865979).

Almost surely, 2^87905396 is an apocalyptic number.

It is an amenable number.

87905396 is a deficient number, since it is larger than the sum of its proper divisors (66486352).

87905396 is a wasteful number, since it uses less digits than its factorization.

87905396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79618 (or 79616 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 87905396 is about 9375.7877535704. The cubic root of 87905396 is about 444.6365689827.

The spelling of 87905396 in words is "eighty-seven million, nine hundred five thousand, three hundred ninety-six".