89218906 has 24 divisors (see below), whose sum is σ = 161051220. Its totient is φ = 36916992.

The previous prime is 89218903. The next prime is 89218919. The reversal of 89218906 is 60981298.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78163281 + 11055625 = 8841^2 + 3325^2 .

It is not an unprimeable number, because it can be changed into a prime (89218901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12855 + ... + 18538.

Almost surely, 2^89218906 is an apocalyptic number.

89218906 is a deficient number, since it is larger than the sum of its proper divisors (71832314).

89218906 is a wasteful number, since it uses less digits than its factorization.

89218906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31438 (or 31431 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 89218906 is about 9445.5760014940. The cubic root of 89218906 is about 446.8402620951.

The spelling of 89218906 in words is "eighty-nine million, two hundred eighteen thousand, nine hundred six".