23328657 has 24 divisors (see below), whose sum is σ = 37372608. Its totient is φ = 13903200.

The previous prime is 23328653. The next prime is 23328689. The reversal of 23328657 is 75682332.

It is not a de Polignac number, because 23328657 - 2² = 23328653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23328653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4108 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (1557192).

Almost surely, 2^23328657 is an apocalyptic number.

It is an amenable number.

23328657 is a deficient number, since it is larger than the sum of its proper divisors (14043951).

23328657 is a wasteful number, since it uses less digits than its factorization.

23328657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941 (or 3938 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 23328657 is about 4829.9748446550. The cubic root of 23328657 is about 285.7348717429.

The spelling of 23328657 in words is "twenty-three million, three hundred twenty-eight thousand, six hundred fifty-seven".