89332720 has 20 divisors (see below), whose sum is σ = 207698760. Its totient is φ = 35733056.

The previous prime is 89332717. The next prime is 89332723. The reversal of 89332720 is 2723398.

It is an interprime number because it is at equal distance from previous prime (89332717) and next prime (89332723).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89332723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558250 + ... + 558409.

It is an arithmetic number, because the mean of its divisors is an integer number (10384938).

Almost surely, 2^89332720 is an apocalyptic number.

89332720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89332720 is an abundant number, since it is smaller than the sum of its proper divisors (118366040).

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

89332720 is a wasteful number, since it uses less digits than its factorization.

89332720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116672 (or 1116666 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 89332720 is about 9451.5988065512. The cubic root of 89332720 is about 447.0301884597.

The spelling of 89332720 in words is "eighty-nine million, three hundred thirty-two thousand, seven hundred twenty".