23491957 has 8 divisors (see below), whose sum is σ = 23836032. Its totient is φ = 23150400.

The previous prime is 23491939. The next prime is 23491967. The reversal of 23491957 is 75919432.

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

It is a cyclic number.

It is not a de Polignac number, because 23491957 - 2⁷ = 23491829 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 (23491907) 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, 25332 + ... + 26242.

It is an arithmetic number, because the mean of its divisors is an integer number (2979504).

Almost surely, 2^23491957 is an apocalyptic number.

It is an amenable number.

23491957 is a deficient number, since it is larger than the sum of its proper divisors (344075).

23491957 is a wasteful number, since it uses less digits than its factorization.

23491957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its digits is 68040, while the sum is 40.

The square root of 23491957 is about 4846.8502143144. The cubic root of 23491957 is about 286.4000343635.

The spelling of 23491957 in words is "twenty-three million, four hundred ninety-one thousand, nine hundred fifty-seven".