23980399 has 2 divisors, whose sum is σ = 23980400. Its totient is φ = 23980398.

The previous prime is 23980393. The next prime is 23980417. The reversal of 23980399 is 99308932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23980399 - 2⁹ = 23979887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23980393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11990199 + 11990200.

It is an arithmetic number, because the mean of its divisors is an integer number (11990200).

Almost surely, 2^23980399 is an apocalyptic number.

23980399 is a deficient number, since it is larger than the sum of its proper divisors (1).

23980399 is an equidigital number, since it uses as much as digits as its factorization.

23980399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 23980399 is about 4896.9785582541. The cubic root of 23980399 is about 288.3713661912.

The spelling of 23980399 in words is "twenty-three million, nine hundred eighty thousand, three hundred ninety-nine".