23997773 has 2 divisors, whose sum is σ = 23997774. Its totient is φ = 23997772.

The previous prime is 23997769. The next prime is 23997797. The reversal of 23997773 is 37779932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 1747684 = 4717^2 + 1322^2 .

It is a cyclic number.

It is not a de Polignac number, because 23997773 - 2² = 23997769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23997173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11998886 + 11998887.

It is an arithmetic number, because the mean of its divisors is an integer number (11998887).

Almost surely, 2^23997773 is an apocalyptic number.

It is an amenable number.

23997773 is a deficient number, since it is larger than the sum of its proper divisors (1).

23997773 is an equidigital number, since it uses as much as digits as its factorization.

23997773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 500094, while the sum is 47.

The square root of 23997773 is about 4898.7521880577. The cubic root of 23997773 is about 288.4409918694.

The spelling of 23997773 in words is "twenty-three million, nine hundred ninety-seven thousand, seven hundred seventy-three".