23442997 has 2 divisors, whose sum is σ = 23442998. Its totient is φ = 23442996.

The previous prime is 23442977. The next prime is 23443027. The reversal of 23442997 is 79924432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21150801 + 2292196 = 4599^2 + 1514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23442997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23442917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721498 + 11721499.

It is an arithmetic number, because the mean of its divisors is an integer number (11721499).

Almost surely, 2^23442997 is an apocalyptic number.

It is an amenable number.

23442997 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442997 is an equidigital number, since it uses as much as digits as its factorization.

23442997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 23442997 is about 4841.7968771934. The cubic root of 23442997 is about 286.2009322021.

The spelling of 23442997 in words is "twenty-three million, four hundred forty-two thousand, nine hundred ninety-seven".