89990604 has 108 divisors (see below), whose sum is σ = 254356648. Its totient is φ = 26801280.

The previous prime is 89990587. The next prime is 89990611. The reversal of 89990604 is 40609998.

It is a self number, because there is not a number n which added to its sum of digits gives 89990604.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 317847 + ... + 318129.

Almost surely, 2^89990604 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 89990604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127178324).

89990604 is an abundant number, since it is smaller than the sum of its proper divisors (164366044).

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

89990604 is a wasteful number, since it uses less digits than its factorization.

89990604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 89990604 is about 9486.3377548978. The cubic root of 89990604 is about 448.1248788245.

The spelling of 89990604 in words is "eighty-nine million, nine hundred ninety thousand, six hundred four".