89765592 has 64 divisors (see below), whose sum is σ = 257376000. Its totient is φ = 25557120.

The previous prime is 89765549. The next prime is 89765597. The reversal of 89765592 is 29556798.

It is a happy number.

It is a super-2 number, since 2×89765592² = 16115723014220928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89765597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57867 + ... + 59397.

It is an arithmetic number, because the mean of its divisors is an integer number (4021500).

Almost surely, 2^89765592 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 89765592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128688000).

89765592 is an abundant number, since it is smaller than the sum of its proper divisors (167610408).

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

89765592 is a wasteful number, since it uses less digits than its factorization.

89765592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1892 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 89765592 is about 9474.4705392966. The cubic root of 89765592 is about 447.7510707866.

The spelling of 89765592 in words is "eighty-nine million, seven hundred sixty-five thousand, five hundred ninety-two".