23679965 has 4 divisors (see below), whose sum is σ = 28415964. Its totient is φ = 18943968.

The previous prime is 23679917. The next prime is 23679973. The reversal of 23679965 is 56997632.

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 10640644 + 13039321 = 3262^2 + 3611^2 .

It is a cyclic number.

It is not a de Polignac number, because 23679965 - 2¹⁶ = 23614429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2367992 + ... + 2368001.

It is an arithmetic number, because the mean of its divisors is an integer number (7103991).

Almost surely, 2^23679965 is an apocalyptic number.

It is an amenable number.

23679965 is a deficient number, since it is larger than the sum of its proper divisors (4735999).

23679965 is an equidigital number, since it uses as much as digits as its factorization.

23679965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735998.

The product of its digits is 612360, while the sum is 47.

The square root of 23679965 is about 4866.2064280094. The cubic root of 23679965 is about 287.1620326036.

The spelling of 23679965 in words is "twenty-three million, six hundred seventy-nine thousand, nine hundred sixty-five".