89818956 has 120 divisors (see below), whose sum is σ = 259791840. Its totient is φ = 26915328.

The previous prime is 89818951. The next prime is 89818957. The reversal of 89818956 is 65981898.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (89818951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126330 + ... + 127038.

It is an arithmetic number, because the mean of its divisors is an integer number (2164932).

Almost surely, 2^89818956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89818956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129895920).

89818956 is an abundant number, since it is smaller than the sum of its proper divisors (169972884).

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

89818956 is a wasteful number, since it uses less digits than its factorization.

89818956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 754 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 89818956 is about 9477.2863204611. The cubic root of 89818956 is about 447.8397798133.

The spelling of 89818956 in words is "eighty-nine million, eight hundred eighteen thousand, nine hundred fifty-six".