89861718 has 16 divisors (see below), whose sum is σ = 182255616. Its totient is φ = 29531880.

The previous prime is 89861699. The next prime is 89861729. The reversal of 89861718 is 81716898.

It is a Curzon number.

It is a congruent number.

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, 105046 + ... + 105897.

It is an arithmetic number, because the mean of its divisors is an integer number (11390976).

Almost surely, 2^89861718 is an apocalyptic number.

89861718 is an abundant number, since it is smaller than the sum of its proper divisors (92393898).

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

89861718 is a wasteful number, since it uses less digits than its factorization.

89861718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211019.

The product of its digits is 193536, while the sum is 48.

The square root of 89861718 is about 9479.5420775478. The cubic root of 89861718 is about 447.9108393728.

The spelling of 89861718 in words is "eighty-nine million, eight hundred sixty-one thousand, seven hundred eighteen".