23136779 has 8 divisors (see below), whose sum is σ = 24960960. Its totient is φ = 21364096.

The previous prime is 23136769. The next prime is 23136811. The reversal of 23136779 is 97763132.

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 23136779 - 2⁸ = 23136523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23136719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11939 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (3120120).

Almost surely, 2^23136779 is an apocalyptic number.

23136779 is a deficient number, since it is larger than the sum of its proper divisors (1824181).

23136779 is a wasteful number, since it uses less digits than its factorization.

23136779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25749.

The product of its digits is 47628, while the sum is 38.

The square root of 23136779 is about 4810.0705816027. The cubic root of 23136779 is about 284.9493251443.

The spelling of 23136779 in words is "twenty-three million, one hundred thirty-six thousand, seven hundred seventy-nine".