23233681 has 2 divisors, whose sum is σ = 23233682. Its totient is φ = 23233680.

The previous prime is 23233673. The next prime is 23233697. The reversal of 23233681 is 18633232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22657600 + 576081 = 4760^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 23233681 - 2³ = 23233673 is a prime.

It is a super-2 number, since 2×23233681² = 1079607865619522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23233621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11616840 + 11616841.

It is an arithmetic number, because the mean of its divisors is an integer number (11616841).

Almost surely, 2^23233681 is an apocalyptic number.

It is an amenable number.

23233681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23233681 is an equidigital number, since it uses as much as digits as its factorization.

23233681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 23233681 is about 4820.1328819857. The cubic root of 23233681 is about 285.3465815403.

The spelling of 23233681 in words is "twenty-three million, two hundred thirty-three thousand, six hundred eighty-one".