23442977 has 2 divisors, whose sum is σ = 23442978. Its totient is φ = 23442976.

The previous prime is 23442967. The next prime is 23442997. The reversal of 23442977 is 77924432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17986081 + 5456896 = 4241^2 + 2336^2 .

It is a cyclic number.

It is not a de Polignac number, because 23442977 - 2⁸ = 23442721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23442977.

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, 11721488 + 11721489.

It is an arithmetic number, because the mean of its divisors is an integer number (11721489).

Almost surely, 2^23442977 is an apocalyptic number.

It is an amenable number.

23442977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442977 is an equidigital number, since it uses as much as digits as its factorization.

23442977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 23442977 is about 4841.7948118441. The cubic root of 23442977 is about 286.2008508129.

The spelling of 23442977 in words is "twenty-three million, four hundred forty-two thousand, nine hundred seventy-seven".