23790881 has 2 divisors, whose sum is σ = 23790882. Its totient is φ = 23790880.

The previous prime is 23790863. The next prime is 23790887. The reversal of 23790881 is 18809732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13653025 + 10137856 = 3695^2 + 3184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23790881 is a prime.

It is a super-2 number, since 2×23790881² = 1132012037512322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23790887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11895440 + 11895441.

It is an arithmetic number, because the mean of its divisors is an integer number (11895441).

Almost surely, 2^23790881 is an apocalyptic number.

It is an amenable number.

23790881 is a deficient number, since it is larger than the sum of its proper divisors (1).

23790881 is an equidigital number, since it uses as much as digits as its factorization.

23790881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 23790881 is about 4877.5896711388. The cubic root of 23790881 is about 287.6096861878.

The spelling of 23790881 in words is "twenty-three million, seven hundred ninety thousand, eight hundred eighty-one".