89528385 has 16 divisors (see below), whose sum is σ = 144000000. Its totient is φ = 47496960.

The previous prime is 89528359. The next prime is 89528407. The reversal of 89528385 is 58382598.

It is not a de Polignac number, because 89528385 - 2⁸ = 89528129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12760 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (9000000).

Almost surely, 2^89528385 is an apocalyptic number.

It is an amenable number.

89528385 is a deficient number, since it is larger than the sum of its proper divisors (54471615).

89528385 is a wasteful number, since it uses less digits than its factorization.

89528385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31448.

The product of its digits is 691200, while the sum is 48.

The square root of 89528385 is about 9461.9440391497. The cubic root of 89528385 is about 447.3563264417.

The spelling of 89528385 in words is "eighty-nine million, five hundred twenty-eight thousand, three hundred eighty-five".