89130784 has 36 divisors (see below), whose sum is σ = 178163874. Its totient is φ = 43889664.

The previous prime is 89130781. The next prime is 89130791. The reversal of 89130784 is 48703198.

It can be written as a sum of positive squares in 3 ways, for example, as 31674384 + 57456400 = 5628^2 + 7580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89130781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567634 + ... + 567790.

Almost surely, 2^89130784 is an apocalyptic number.

It is an amenable number.

89130784 is a deficient number, since it is larger than the sum of its proper divisors (89033090).

89130784 is a wasteful number, since it uses less digits than its factorization.

89130784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 89130784 is about 9440.9101256182. The cubic root of 89130784 is about 446.6930981116.

The spelling of 89130784 in words is "eighty-nine million, one hundred thirty thousand, seven hundred eighty-four".