87679618 has 16 divisors (see below), whose sum is σ = 142031736. Its totient is φ = 40354560.

The previous prime is 87679609. The next prime is 87679621. The reversal of 87679618 is 81697678.

It can be written as a sum of positive squares in 4 ways, for example, as 83667609 + 4012009 = 9147^2 + 2003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5178 + ... + 14218.

Almost surely, 2^87679618 is an apocalyptic number.

87679618 is a deficient number, since it is larger than the sum of its proper divisors (54352118).

87679618 is a wasteful number, since it uses less digits than its factorization.

87679618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429.

The product of its digits is 1016064, while the sum is 52.

The square root of 87679618 is about 9363.7395307644. The cubic root of 87679618 is about 444.2555714184.

The spelling of 87679618 in words is "eighty-seven million, six hundred seventy-nine thousand, six hundred eighteen".