23137623 has 8 divisors (see below), whose sum is σ = 34278000. Its totient is φ = 15425064.

The previous prime is 23137619. The next prime is 23137633. The reversal of 23137623 is 32673132.

23137623 is a `hidden beast` number, since 2 + 3 + 1 + 37 + 623 = 666.

It is not a de Polignac number, because 23137623 - 2² = 23137619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 856949 = 23137623 / (2 + 3 + 1 + 3 + 7 + 6 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428448 + ... + 428501.

It is an arithmetic number, because the mean of its divisors is an integer number (4284750).

Almost surely, 2^23137623 is an apocalyptic number.

23137623 is a deficient number, since it is larger than the sum of its proper divisors (11140377).

23137623 is an equidigital number, since it uses as much as digits as its factorization.

23137623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856958 (or 856952 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 23137623 is about 4810.1583134030. The cubic root of 23137623 is about 284.9527899641.

The spelling of 23137623 in words is "twenty-three million, one hundred thirty-seven thousand, six hundred twenty-three".