89172213 has 16 divisors (see below), whose sum is σ = 132174336. Its totient is φ = 53104320.

The previous prime is 89172163. The next prime is 89172217. The reversal of 89172213 is 31227198.

It is not a de Polignac number, because 89172213 - 2¹² = 89168117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89172217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35670 + ... + 38087.

It is an arithmetic number, because the mean of its divisors is an integer number (8260896).

Almost surely, 2^89172213 is an apocalyptic number.

It is an amenable number.

89172213 is a deficient number, since it is larger than the sum of its proper divisors (43002123).

89172213 is a wasteful number, since it uses less digits than its factorization.

89172213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73804.

The product of its digits is 6048, while the sum is 33.

The square root of 89172213 is about 9443.1039918027. The cubic root of 89172213 is about 446.7622967319.

The spelling of 89172213 in words is "eighty-nine million, one hundred seventy-two thousand, two hundred thirteen".