23333813 has 2 divisors, whose sum is σ = 23333814. Its totient is φ = 23333812.

The previous prime is 23333803. The next prime is 23333819. The reversal of 23333813 is 31833332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21325924 + 2007889 = 4618^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 23333813 - 2¹⁴ = 23317429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23333819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11666906 + 11666907.

It is an arithmetic number, because the mean of its divisors is an integer number (11666907).

Almost surely, 2^23333813 is an apocalyptic number.

It is an amenable number.

23333813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23333813 is an equidigital number, since it uses as much as digits as its factorization.

23333813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 23333813 is about 4830.5085653583. The cubic root of 23333813 is about 285.7559208254.

The spelling of 23333813 in words is "twenty-three million, three hundred thirty-three thousand, eight hundred thirteen".