23994431 has 2 divisors, whose sum is σ = 23994432. Its totient is φ = 23994430.

The previous prime is 23994419. The next prime is 23994437. The reversal of 23994431 is 13449932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23994431 - 2⁶ = 23994367 is a prime.

It is a super-2 number, since 2×23994431² = 1151465438027522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1506797 and since 23994431 and 1506797 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 23994391 and 23994400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23994437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11997215 + 11997216.

It is an arithmetic number, because the mean of its divisors is an integer number (11997216).

Almost surely, 2^23994431 is an apocalyptic number.

23994431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23994431 is an equidigital number, since it uses as much as digits as its factorization.

23994431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 23994431 is about 4898.4110689080. The cubic root of 23994431 is about 288.4276015360.

The spelling of 23994431 in words is "twenty-three million, nine hundred ninety-four thousand, four hundred thirty-one".