23504231 has 4 divisors (see below), whose sum is σ = 24262464. Its totient is φ = 22746000.

The previous prime is 23504219. The next prime is 23504233. The reversal of 23504231 is 13240532.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23504231 is a prime.

It is a super-2 number, since 2×23504231² = 1104897749802722, 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 (23504233) 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, 379070 + ... + 379131.

It is an arithmetic number, because the mean of its divisors is an integer number (6065616).

Almost surely, 2^23504231 is an apocalyptic number.

23504231 is a deficient number, since it is larger than the sum of its proper divisors (758233).

23504231 is an equidigital number, since it uses as much as digits as its factorization.

23504231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758232.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23504231 is about 4848.1162321050. The cubic root of 23504231 is about 286.4499047934.

Adding to 23504231 its reverse (13240532), we get a palindrome (36744763).

The spelling of 23504231 in words is "twenty-three million, five hundred four thousand, two hundred thirty-one".