89117418 has 24 divisors (see below), whose sum is σ = 193002048. Its totient is φ = 27420432.

The previous prime is 89117389. The next prime is 89117449. The reversal of 89117418 is 81471198.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42930 + ... + 44957.

It is an arithmetic number, because the mean of its divisors is an integer number (8041752).

Almost surely, 2^89117418 is an apocalyptic number.

89117418 is an abundant number, since it is smaller than the sum of its proper divisors (103884630).

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

89117418 is a wasteful number, since it uses less digits than its factorization.

89117418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87918 (or 87905 counting only the distinct ones).

The product of its digits is 16128, while the sum is 39.

The square root of 89117418 is about 9440.2022224103. The cubic root of 89117418 is about 446.6707683839.

The spelling of 89117418 in words is "eighty-nine million, one hundred seventeen thousand, four hundred eighteen".