23402791 has 2 divisors, whose sum is σ = 23402792. Its totient is φ = 23402790.

The previous prime is 23402783. The next prime is 23402801. The reversal of 23402791 is 19720432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23402791 - 2³ = 23402783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26402791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701395 + 11701396.

It is an arithmetic number, because the mean of its divisors is an integer number (11701396).

Almost surely, 2^23402791 is an apocalyptic number.

23402791 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402791 is an equidigital number, since it uses as much as digits as its factorization.

23402791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 23402791 is about 4837.6431244977. The cubic root of 23402791 is about 286.0372219147.

The spelling of 23402791 in words is "twenty-three million, four hundred two thousand, seven hundred ninety-one".