23843431 has 2 divisors, whose sum is σ = 23843432. Its totient is φ = 23843430.

The previous prime is 23843389. The next prime is 23843467. The reversal of 23843431 is 13434832.

23843431 is nontrivially palindromic in base 14.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23843431 - 2⁹ = 23842919 is a prime.

It is a super-2 number, since 2×23843431² = 1137018403703522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23843431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23843471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11921715 + 11921716.

It is an arithmetic number, because the mean of its divisors is an integer number (11921716).

Almost surely, 2^23843431 is an apocalyptic number.

23843431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23843431 is an equidigital number, since it uses as much as digits as its factorization.

23843431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 23843431 is about 4882.9735817430. The cubic root of 23843431 is about 287.8212907188.

The spelling of 23843431 in words is "twenty-three million, eight hundred forty-three thousand, four hundred thirty-one".