23253239 has 4 divisors (see below), whose sum is σ = 23794056. Its totient is φ = 22712424.

The previous prime is 23253233. The next prime is 23253259. The reversal of 23253239 is 93235232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23253239 - 2¹² = 23249143 is a prime.

It is a super-2 number, since 2×23253239² = 1081426247982242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23253233) 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, 270344 + ... + 270429.

It is an arithmetic number, because the mean of its divisors is an integer number (5948514).

Almost surely, 2^23253239 is an apocalyptic number.

23253239 is a deficient number, since it is larger than the sum of its proper divisors (540817).

23253239 is an equidigital number, since it uses as much as digits as its factorization.

23253239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540816.

The product of its digits is 9720, while the sum is 29.

The square root of 23253239 is about 4822.1612374536. The cubic root of 23253239 is about 285.4266268734.

The spelling of 23253239 in words is "twenty-three million, two hundred fifty-three thousand, two hundred thirty-nine".