23928137 has 2 divisors, whose sum is σ = 23928138. Its totient is φ = 23928136.

The previous prime is 23928127. The next prime is 23928173. The reversal of 23928137 is 73182932.

Together with next prime (23928173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 4734976 = 4381^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 23928137 - 2²⁰ = 22879561 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23928097 and 23928106.

It is not a weakly prime, because it can be changed into another prime (23928127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11964068 + 11964069.

It is an arithmetic number, because the mean of its divisors is an integer number (11964069).

Almost surely, 2^23928137 is an apocalyptic number.

It is an amenable number.

23928137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23928137 is an equidigital number, since it uses as much as digits as its factorization.

23928137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 23928137 is about 4891.6395002085. The cubic root of 23928137 is about 288.1617251713.

The spelling of 23928137 in words is "twenty-three million, nine hundred twenty-eight thousand, one hundred thirty-seven".