23682521 has 2 divisors, whose sum is σ = 23682522. Its totient is φ = 23682520.

The previous prime is 23682511. The next prime is 23682559. The reversal of 23682521 is 12528632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23658496 + 24025 = 4864^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23682521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23682511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11841260 + 11841261.

It is an arithmetic number, because the mean of its divisors is an integer number (11841261).

Almost surely, 2^23682521 is an apocalyptic number.

It is an amenable number.

23682521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23682521 is an equidigital number, since it uses as much as digits as its factorization.

23682521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 23682521 is about 4866.4690484991. The cubic root of 23682521 is about 287.1723642594.

The spelling of 23682521 in words is "twenty-three million, six hundred eighty-two thousand, five hundred twenty-one".