89218920 has 64 divisors (see below), whose sum is σ = 305896320. Its totient is φ = 20392704.

The previous prime is 89218919. The next prime is 89218931. The reversal of 89218920 is 2981298.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52267 + ... + 53946.

It is an arithmetic number, because the mean of its divisors is an integer number (4779630).

Almost surely, 2^89218920 is an apocalyptic number.

It is an amenable number.

89218920 is an abundant number, since it is smaller than the sum of its proper divisors (216677400).

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

89218920 is a wasteful number, since it uses less digits than its factorization.

89218920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106234 (or 106230 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 89218920 is about 9445.5767425817. The cubic root of 89218920 is about 446.8402854674.

The spelling of 89218920 in words is "eighty-nine million, two hundred eighteen thousand, nine hundred twenty".