23157623 has 2 divisors, whose sum is σ = 23157624. Its totient is φ = 23157622.

The previous prime is 23157611. The next prime is 23157643. The reversal of 23157623 is 32675132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23157623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23157643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11578811 + 11578812.

It is an arithmetic number, because the mean of its divisors is an integer number (11578812).

Almost surely, 2^23157623 is an apocalyptic number.

23157623 is a deficient number, since it is larger than the sum of its proper divisors (1).

23157623 is an equidigital number, since it uses as much as digits as its factorization.

23157623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 23157623 is about 4812.2367979974. The cubic root of 23157623 is about 285.0348700537.

The spelling of 23157623 in words is "twenty-three million, one hundred fifty-seven thousand, six hundred twenty-three".