86972223 has 16 divisors (see below), whose sum is σ = 130314240. Its totient is φ = 51193824.

The previous prime is 86972213. The next prime is 86972227. The reversal of 86972223 is 32227968.

It is not a de Polignac number, because 86972223 - 2⁸ = 86971967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86972227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47583 + ... + 49376.

It is an arithmetic number, because the mean of its divisors is an integer number (8144640).

Almost surely, 2^86972223 is an apocalyptic number.

86972223 is a deficient number, since it is larger than the sum of its proper divisors (43342017).

86972223 is a wasteful number, since it uses less digits than its factorization.

86972223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96998.

The product of its digits is 72576, while the sum is 39.

The square root of 86972223 is about 9325.8899307251. The cubic root of 86972223 is about 443.0575995981.

The spelling of 86972223 in words is "eighty-six million, nine hundred seventy-two thousand, two hundred twenty-three".