87318608 has 20 divisors (see below), whose sum is σ = 182194068. Its totient is φ = 40300800.

The previous prime is 87318607. The next prime is 87318617. The reversal of 87318608 is 80681378.

It can be written as a sum of positive squares in 2 ways, for example, as 47224384 + 40094224 = 6872^2 + 6332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87318607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209693 + ... + 210108.

Almost surely, 2^87318608 is an apocalyptic number.

It is an amenable number.

87318608 is an abundant number, since it is smaller than the sum of its proper divisors (94875460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87318608 is a wasteful number, since it uses less digits than its factorization.

87318608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419822 (or 419816 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 87318608 is about 9344.4426265027. The cubic root of 87318608 is about 443.6450101944.

The spelling of 87318608 in words is "eighty-seven million, three hundred eighteen thousand, six hundred eight".