89811912 has 64 divisors (see below), whose sum is σ = 229178880. Its totient is φ = 29325312.

The previous prime is 89811899. The next prime is 89811919. The reversal of 89811912 is 21911898.

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 not an unprimeable number, because it can be changed into a prime (89811919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402633 + ... + 402855.

It is an arithmetic number, because the mean of its divisors is an integer number (3580920).

Almost surely, 2^89811912 is an apocalyptic number.

It is an amenable number.

89811912 is an abundant number, since it is smaller than the sum of its proper divisors (139366968).

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

89811912 is a wasteful number, since it uses less digits than its factorization.

89811912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its digits is 10368, while the sum is 39.

The square root of 89811912 is about 9476.9146878085. The cubic root of 89811912 is about 447.8280723148.

The spelling of 89811912 in words is "eighty-nine million, eight hundred eleven thousand, nine hundred twelve".