87899408 has 20 divisors (see below), whose sum is σ = 174460188. Its totient is φ = 42877440.

The previous prime is 87899393. The next prime is 87899411. The reversal of 87899408 is 80499878.

It can be written as a sum of positive squares in 2 ways, for example, as 17875984 + 70023424 = 4228^2 + 8368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87899408.

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, 66341 + ... + 67652.

Almost surely, 2^87899408 is an apocalyptic number.

It is an amenable number.

87899408 is a deficient number, since it is larger than the sum of its proper divisors (86560780).

87899408 is a wasteful number, since it uses less digits than its factorization.

87899408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134042 (or 134036 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 87899408 is about 9375.4684149647. The cubic root of 87899408 is about 444.6264727339.

The spelling of 87899408 in words is "eighty-seven million, eight hundred ninety-nine thousand, four hundred eight".