23747641 has 2 divisors, whose sum is σ = 23747642. Its totient is φ = 23747640.

The previous prime is 23747629. The next prime is 23747671. The reversal of 23747641 is 14674732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17397241 + 6350400 = 4171^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 23747641 - 2⁵ = 23747609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23747597 and 23747606.

It is not a weakly prime, because it can be changed into another prime (23747671) 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, 11873820 + 11873821.

It is an arithmetic number, because the mean of its divisors is an integer number (11873821).

Almost surely, 2^23747641 is an apocalyptic number.

It is an amenable number.

23747641 is a deficient number, since it is larger than the sum of its proper divisors (1).

23747641 is an equidigital number, since it uses as much as digits as its factorization.

23747641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 23747641 is about 4873.1551381010. The cubic root of 23747641 is about 287.4353366860.

The spelling of 23747641 in words is "twenty-three million, seven hundred forty-seven thousand, six hundred forty-one".