89798880 has 48 divisors (see below), whose sum is σ = 282867984. Its totient is φ = 23946240.

The previous prime is 89798869. The next prime is 89798881. The reversal of 89798880 is 8889798.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 89798880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89798881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93061 + ... + 94020.

It is an arithmetic number, because the mean of its divisors is an integer number (5893083).

Almost surely, 2^89798880 is an apocalyptic number.

89798880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89798880 is an abundant number, since it is smaller than the sum of its proper divisors (193069104).

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

89798880 is a wasteful number, since it uses less digits than its factorization.

89798880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187099 (or 187091 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 57.

The square root of 89798880 is about 9476.2270973210. The cubic root of 89798880 is about 447.8064108313.

The spelling of 89798880 in words is "eighty-nine million, seven hundred ninety-eight thousand, eight hundred eighty".