89072231 has 4 divisors (see below), whose sum is σ = 94311792. Its totient is φ = 83832672.

The previous prime is 89072219. The next prime is 89072239. The reversal of 89072231 is 13227098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89072231 - 2⁶ = 89072167 is a prime.

It is a super-2 number, since 2×89072231² = 15867724670634722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89072239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619755 + ... + 2619788.

It is an arithmetic number, because the mean of its divisors is an integer number (23577948).

Almost surely, 2^89072231 is an apocalyptic number.

89072231 is a deficient number, since it is larger than the sum of its proper divisors (5239561).

89072231 is a wasteful number, since it uses less digits than its factorization.

89072231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239560.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 89072231 is about 9437.8085909813. The cubic root of 89072231 is about 446.5952607940.

The spelling of 89072231 in words is "eighty-nine million, seventy-two thousand, two hundred thirty-one".