89940872 has 36 divisors (see below), whose sum is σ = 196582455. Its totient is φ = 38465616.

The previous prime is 89940859. The next prime is 89940887. The reversal of 89940872 is 27804998.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 44970436 = 6706^2 + 6706^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6706.

It is a super-2 number, since 2×89940872² = 16178720912240768, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 187529 + ... + 188007.

Almost surely, 2^89940872 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 89940872

89940872 is an abundant number, since it is smaller than the sum of its proper divisors (106641583).

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

89940872 is an equidigital number, since it uses as much as digits as its factorization.

89940872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 89940872 is about 9483.7161492740. The cubic root of 89940872 is about 448.0423137117.

The spelling of 89940872 in words is "eighty-nine million, nine hundred forty thousand, eight hundred seventy-two".