23230657 has 2 divisors, whose sum is σ = 23230658. Its totient is φ = 23230656.

The previous prime is 23230639. The next prime is 23230693. The reversal of 23230657 is 75603232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 8300161 = 3864^2 + 2881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23230657 is a prime.

It is not a weakly prime, because it can be changed into another prime (23230607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615328 + 11615329.

It is an arithmetic number, because the mean of its divisors is an integer number (11615329).

Almost surely, 2^23230657 is an apocalyptic number.

It is an amenable number.

23230657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230657 is an equidigital number, since it uses as much as digits as its factorization.

23230657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 23230657 is about 4819.8191874800. The cubic root of 23230657 is about 285.3342011588.

Adding to 23230657 its reverse (75603232), we get a palindrome (98833889).

The spelling of 23230657 in words is "twenty-three million, two hundred thirty thousand, six hundred fifty-seven".