23831457 has 16 divisors (see below), whose sum is σ = 34802880. Its totient is φ = 14415552.

The previous prime is 23831413. The next prime is 23831459. The reversal of 23831457 is 75413832.

It is not a de Polignac number, because 23831457 - 2⁶ = 23831393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23831459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2878 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (2175180).

Almost surely, 2^23831457 is an apocalyptic number.

It is an amenable number.

23831457 is a deficient number, since it is larger than the sum of its proper divisors (10971423).

23831457 is a wasteful number, since it uses less digits than its factorization.

23831457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432.

The product of its digits is 20160, while the sum is 33.

The square root of 23831457 is about 4881.7473306184. The cubic root of 23831457 is about 287.7731020554.

The spelling of 23831457 in words is "twenty-three million, eight hundred thirty-one thousand, four hundred fifty-seven".