23604231 has 40 divisors (see below), whose sum is σ = 38317680. Its totient is φ = 12907776.

The previous prime is 23604221. The next prime is 23604241. The reversal of 23604231 is 13240632.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23604221) and next prime (23604241).

It is not a de Polignac number, because 23604231 - 2¹³ = 23596039 is a prime.

It is a super-2 number, since 2×23604231² = 1114319442202722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23604198 and 23604207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23604221) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 208831 + ... + 208943.

It is an arithmetic number, because the mean of its divisors is an integer number (957942).

Almost surely, 2^23604231 is an apocalyptic number.

23604231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23604231 is a deficient number, since it is larger than the sum of its proper divisors (14713449).

23604231 is an equidigital number, since it uses as much as digits as its factorization.

23604231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23604231 is about 4858.4185698641. The cubic root of 23604231 is about 286.8555688112.

Adding to 23604231 its reverse (13240632), we get a palindrome (36844863).

The spelling of 23604231 in words is "twenty-three million, six hundred four thousand, two hundred thirty-one".