23253857 has 4 divisors (see below), whose sum is σ = 25367856. Its totient is φ = 21139860.

The previous prime is 23253833. The next prime is 23253869. The reversal of 23253857 is 75835232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23253857 - 2²⁴ = 6476641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23253817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056983 + ... + 1057004.

It is an arithmetic number, because the mean of its divisors is an integer number (6341964).

Almost surely, 2^23253857 is an apocalyptic number.

It is an amenable number.

23253857 is a deficient number, since it is larger than the sum of its proper divisors (2113999).

23253857 is a wasteful number, since it uses less digits than its factorization.

23253857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113998.

The product of its digits is 50400, while the sum is 35.

The square root of 23253857 is about 4822.2253161792. The cubic root of 23253857 is about 285.4291554401.

The spelling of 23253857 in words is "twenty-three million, two hundred fifty-three thousand, eight hundred fifty-seven".