23136979 has 8 divisors (see below), whose sum is σ = 23478768. Its totient is φ = 22797600.

The previous prime is 23136977. The next prime is 23137001. The reversal of 23136979 is 97963132.

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

It is a cyclic number.

It is not a de Polignac number, because 23136979 - 2¹ = 23136977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23136973) 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 7 ways as a sum of consecutive naturals, for example, 27564 + ... + 28390.

It is an arithmetic number, because the mean of its divisors is an integer number (2934846).

Almost surely, 2^23136979 is an apocalyptic number.

23136979 is a deficient number, since it is larger than the sum of its proper divisors (341789).

23136979 is a wasteful number, since it uses less digits than its factorization.

23136979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205.

The product of its digits is 61236, while the sum is 40.

The square root of 23136979 is about 4810.0913712735. The cubic root of 23136979 is about 284.9501461993.

The spelling of 23136979 in words is "twenty-three million, one hundred thirty-six thousand, nine hundred seventy-nine".