87318858 has 32 divisors (see below), whose sum is σ = 192936960. Its totient is φ = 26123760.

The previous prime is 87318857. The next prime is 87318883. The reversal of 87318858 is 85881378.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87318857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3160 + ... + 13587.

It is an arithmetic number, because the mean of its divisors is an integer number (6029280).

Almost surely, 2^87318858 is an apocalyptic number.

87318858 is an abundant number, since it is smaller than the sum of its proper divisors (105618102).

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

87318858 is a wasteful number, since it uses less digits than its factorization.

87318858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16842.

The product of its digits is 430080, while the sum is 48.

The square root of 87318858 is about 9344.4560034279. The cubic root of 87318858 is about 443.6454335908.

The spelling of 87318858 in words is "eighty-seven million, three hundred eighteen thousand, eight hundred fifty-eight".