23228657 has 2 divisors, whose sum is σ = 23228658. Its totient is φ = 23228656.

The previous prime is 23228633. The next prime is 23228671. The reversal of 23228657 is 75682232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16654561 + 6574096 = 4081^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 23228657 - 2⁶ = 23228593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23228627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11614328 + 11614329.

It is an arithmetic number, because the mean of its divisors is an integer number (11614329).

Almost surely, 2^23228657 is an apocalyptic number.

It is an amenable number.

23228657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23228657 is an equidigital number, since it uses as much as digits as its factorization.

23228657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 23228657 is about 4819.6117063515. The cubic root of 23228657 is about 285.3260124855.

The spelling of 23228657 in words is "twenty-three million, two hundred twenty-eight thousand, six hundred fifty-seven".