89404236 has 30 divisors (see below), whose sum is σ = 233721180. Its totient is φ = 29801304.

The previous prime is 89404213. The next prime is 89404261. The reversal of 89404236 is 63240498.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 89404236.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 137646 + ... + 138293.

It is an arithmetic number, because the mean of its divisors is an integer number (7790706).

Almost surely, 2^89404236 is an apocalyptic number.

It is an amenable number.

89404236 is an abundant number, since it is smaller than the sum of its proper divisors (144316944).

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

89404236 is a wasteful number, since it uses less digits than its factorization.

89404236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275955 (or 275944 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 89404236 is about 9455.3813249387. The cubic root of 89404236 is about 447.1494477992.

The spelling of 89404236 in words is "eighty-nine million, four hundred four thousand, two hundred thirty-six".