23928157 has 8 divisors (see below), whose sum is σ = 26156160. Its totient is φ = 21708960.

The previous prime is 23928137. The next prime is 23928173. The reversal of 23928157 is 75182932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23928157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23928127) 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, 4348 + ... + 8170.

It is an arithmetic number, because the mean of its divisors is an integer number (3269520).

Almost surely, 2^23928157 is an apocalyptic number.

It is an amenable number.

23928157 is a deficient number, since it is larger than the sum of its proper divisors (2228003).

23928157 is a wasteful number, since it uses less digits than its factorization.

23928157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403.

The product of its digits is 30240, while the sum is 37.

The square root of 23928157 is about 4891.6415445124. The cubic root of 23928157 is about 288.1618054566.

The spelling of 23928157 in words is "twenty-three million, nine hundred twenty-eight thousand, one hundred fifty-seven".