89055720 has 128 divisors (see below), whose sum is σ = 319737600. Its totient is φ = 21917952.

The previous prime is 89055677. The next prime is 89055727. The reversal of 89055720 is 2755098.

89055720 is a `hidden beast` number, since 89 + 0 + 5 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (89055727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10869 + ... + 17211.

It is an arithmetic number, because the mean of its divisors is an integer number (2497950).

Almost surely, 2^89055720 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 89055720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159868800).

89055720 is an abundant number, since it is smaller than the sum of its proper divisors (230681880).

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

89055720 is a wasteful number, since it uses less digits than its factorization.

89055720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376 (or 6366 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 89055720 is about 9436.9338240765. The cubic root of 89055720 is about 446.5676645015.

The spelling of 89055720 in words is "eighty-nine million, fifty-five thousand, seven hundred twenty".