23942997 has 12 divisors (see below), whose sum is σ = 37244844. Its totient is φ = 14734080.

The previous prime is 23942993. The next prime is 23942999. The reversal of 23942997 is 79924932.

It can be written as a sum of positive squares in 2 ways, for example, as 1418481 + 22524516 = 1191^2 + 4746^2 .

It is not a de Polignac number, because 23942997 - 2² = 23942993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23942993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102204 + ... + 102437.

It is an arithmetic number, because the mean of its divisors is an integer number (3103737).

Almost surely, 2^23942997 is an apocalyptic number.

It is an amenable number.

23942997 is a deficient number, since it is larger than the sum of its proper divisors (13301847).

23942997 is a wasteful number, since it uses less digits than its factorization.

23942997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204660 (or 204657 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 23942997 is about 4893.1581826056. The cubic root of 23942997 is about 288.2213648208.

The spelling of 23942997 in words is "twenty-three million, nine hundred forty-two thousand, nine hundred ninety-seven".