89399680 has 64 divisors (see below), whose sum is σ = 218998080. Its totient is φ = 34877440.

The previous prime is 89399647. The next prime is 89399707. The reversal of 89399680 is 8699398.

It is a tau number, because it is divible by the number of its divisors (64).

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, 24537 + ... + 27943.

It is an arithmetic number, because the mean of its divisors is an integer number (3421845).

Almost surely, 2^89399680 is an apocalyptic number.

89399680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89399680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109499040).

89399680 is an abundant number, since it is smaller than the sum of its proper divisors (129598400).

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

89399680 is a wasteful number, since it uses less digits than its factorization.

89399680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 89399680 is about 9455.1404008613. The cubic root of 89399680 is about 447.1418521580.

The spelling of 89399680 in words is "eighty-nine million, three hundred ninety-nine thousand, six hundred eighty".