23790491 has 2 divisors, whose sum is σ = 23790492. Its totient is φ = 23790490.

The previous prime is 23790479. The next prime is 23790541. The reversal of 23790491 is 19409732.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23790491 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23790421) 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, 11895245 + 11895246.

It is an arithmetic number, because the mean of its divisors is an integer number (11895246).

Almost surely, 2^23790491 is an apocalyptic number.

23790491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23790491 is an equidigital number, since it uses as much as digits as its factorization.

23790491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 23790491 is about 4877.5496922123. The cubic root of 23790491 is about 287.6081145998.

The spelling of 23790491 in words is "twenty-three million, seven hundred ninety thousand, four hundred ninety-one".