23419661 has 2 divisors, whose sum is σ = 23419662. Its totient is φ = 23419660.

The previous prime is 23419633. The next prime is 23419673. The reversal of 23419661 is 16691432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23377225 + 42436 = 4835^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 23419661 - 2¹⁸ = 23157517 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23419621) 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, 11709830 + 11709831.

It is an arithmetic number, because the mean of its divisors is an integer number (11709831).

Almost surely, 2^23419661 is an apocalyptic number.

It is an amenable number.

23419661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23419661 is an equidigital number, since it uses as much as digits as its factorization.

23419661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 23419661 is about 4839.3864280506. The cubic root of 23419661 is about 286.1059357833.

The spelling of 23419661 in words is "twenty-three million, four hundred nineteen thousand, six hundred sixty-one".