23179993 has 8 divisors (see below), whose sum is σ = 24798312. Its totient is φ = 21590016.

The previous prime is 23179931. The next prime is 23179997. The reversal of 23179993 is 39997132.

It can be written as a sum of positive squares in 4 ways, for example, as 1024144 + 22155849 = 1012^2 + 4707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23179993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23179997) 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 7 ways as a sum of consecutive naturals, for example, 5380 + ... + 8677.

It is an arithmetic number, because the mean of its divisors is an integer number (3099789).

Almost surely, 2^23179993 is an apocalyptic number.

It is an amenable number.

23179993 is a deficient number, since it is larger than the sum of its proper divisors (1618319).

23179993 is a wasteful number, since it uses less digits than its factorization.

23179993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171.

The product of its digits is 91854, while the sum is 43.

The square root of 23179993 is about 4814.5605199229. The cubic root of 23179993 is about 285.1266206625.

The spelling of 23179993 in words is "twenty-three million, one hundred seventy-nine thousand, nine hundred ninety-three".