23979445 has 16 divisors (see below), whose sum is σ = 32976000. Its totient is φ = 16398144.

The previous prime is 23979443. The next prime is 23979457. The reversal of 23979445 is 54497932.

It is not a de Polignac number, because 23979445 - 2¹ = 23979443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23979443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16779 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (2061000).

Almost surely, 2^23979445 is an apocalyptic number.

It is an amenable number.

23979445 is a deficient number, since it is larger than the sum of its proper divisors (8996555).

23979445 is a wasteful number, since it uses less digits than its factorization.

23979445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 272160, while the sum is 43.

The square root of 23979445 is about 4896.8811502833. The cubic root of 23979445 is about 288.3675420967.

The spelling of 23979445 in words is "twenty-three million, nine hundred seventy-nine thousand, four hundred forty-five".