89811804 has 12 divisors (see below), whose sum is σ = 209560904. Its totient is φ = 29937264.

The previous prime is 89811797. The next prime is 89811809. The reversal of 89811804 is 40811898.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89811809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3742147 + ... + 3742170.

Almost surely, 2^89811804 is an apocalyptic number.

It is an amenable number.

89811804 is an abundant number, since it is smaller than the sum of its proper divisors (119749100).

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

89811804 is a wasteful number, since it uses less digits than its factorization.

89811804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484324 (or 7484322 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 89811804 is about 9476.9089897498. The cubic root of 89811804 is about 447.8278928084.

The spelling of 89811804 in words is "eighty-nine million, eight hundred eleven thousand, eight hundred four".