23601431 has 4 divisors (see below), whose sum is σ = 26973072. Its totient is φ = 20229792.

The previous prime is 23601407. The next prime is 23601433. The reversal of 23601431 is 13410632.

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-23601431 is a prime.

It is a super-2 number, since 2×23601431² = 1114055090495522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23601433) 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, 1685810 + ... + 1685823.

It is an arithmetic number, because the mean of its divisors is an integer number (6743268).

Almost surely, 2^23601431 is an apocalyptic number.

23601431 is a deficient number, since it is larger than the sum of its proper divisors (3371641).

23601431 is an equidigital number, since it uses as much as digits as its factorization.

23601431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371640.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 23601431 is about 4858.1304017080. The cubic root of 23601431 is about 286.8442258257.

The spelling of 23601431 in words is "twenty-three million, six hundred one thousand, four hundred thirty-one".