87899604 has 72 divisors (see below), whose sum is σ = 225046080. Its totient is φ = 26687232.

The previous prime is 87899563. The next prime is 87899641. The reversal of 87899604 is 40699878.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180249 + ... + 180735.

It is an arithmetic number, because the mean of its divisors is an integer number (3125640).

Almost surely, 2^87899604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87899604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112523040).

87899604 is an abundant number, since it is smaller than the sum of its proper divisors (137146476).

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

87899604 is a wasteful number, since it uses less digits than its factorization.

87899604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 87899604 is about 9375.4788677699. The cubic root of 87899604 is about 444.6268032129.

The spelling of 87899604 in words is "eighty-seven million, eight hundred ninety-nine thousand, six hundred four".