23392813 has 2 divisors, whose sum is σ = 23392814. Its totient is φ = 23392812.

The previous prime is 23392783. The next prime is 23392823. The reversal of 23392813 is 31829332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15896169 + 7496644 = 3987^2 + 2738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23392813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23392823) 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, 11696406 + 11696407.

It is an arithmetic number, because the mean of its divisors is an integer number (11696407).

Almost surely, 2^23392813 is an apocalyptic number.

It is an amenable number.

23392813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23392813 is an equidigital number, since it uses as much as digits as its factorization.

23392813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 23392813 is about 4836.6117272322. The cubic root of 23392813 is about 285.9965645829.

The spelling of 23392813 in words is "twenty-three million, three hundred ninety-two thousand, eight hundred thirteen".