89811138 has 16 divisors (see below), whose sum is σ = 189076320. Its totient is φ = 28361376.

The previous prime is 89811121. The next prime is 89811167. The reversal of 89811138 is 83111898.

It is a junction number, because it is equal to n+sod(n) for n = 89811096 and 89811105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393795 + ... + 394022.

It is an arithmetic number, because the mean of its divisors is an integer number (11817270).

Almost surely, 2^89811138 is an apocalyptic number.

89811138 is an abundant number, since it is smaller than the sum of its proper divisors (99265182).

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

89811138 is a wasteful number, since it uses less digits than its factorization.

89811138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787841.

The product of its digits is 13824, while the sum is 39.

The square root of 89811138 is about 9476.8738516454. The cubic root of 89811138 is about 447.8267858488.

The spelling of 89811138 in words is "eighty-nine million, eight hundred eleven thousand, one hundred thirty-eight".