23179969 has 4 divisors (see below), whose sum is σ = 23219140. Its totient is φ = 23140800.

The previous prime is 23179931. The next prime is 23179997. The reversal of 23179969 is 96997132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17539344 + 5640625 = 4188^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 23179969 - 2¹³ = 23171777 is a prime.

It is a super-2 number, since 2×23179969² = 1074621925681922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23179769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18684 + ... + 19885.

It is an arithmetic number, because the mean of its divisors is an integer number (5804785).

Almost surely, 2^23179969 is an apocalyptic number.

It is an amenable number.

23179969 is a deficient number, since it is larger than the sum of its proper divisors (39171).

23179969 is an equidigital number, since it uses as much as digits as its factorization.

23179969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39170.

The product of its digits is 183708, while the sum is 46.

The square root of 23179969 is about 4814.5580274829. The cubic root of 23179969 is about 285.1265222581.

It can be divided in two parts, 231 and 79969, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 23179969 in words is "twenty-three million, one hundred seventy-nine thousand, nine hundred sixty-nine".