23389963 has 2 divisors, whose sum is σ = 23389964. Its totient is φ = 23389962.

The previous prime is 23389913. The next prime is 23389987. The reversal of 23389963 is 36998332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23389963 is a prime.

It is not a weakly prime, because it can be changed into another prime (23389913) 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, 11694981 + 11694982.

It is an arithmetic number, because the mean of its divisors is an integer number (11694982).

Almost surely, 2^23389963 is an apocalyptic number.

23389963 is a deficient number, since it is larger than the sum of its proper divisors (1).

23389963 is an equidigital number, since it uses as much as digits as its factorization.

23389963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 23389963 is about 4836.3170905142. The cubic root of 23389963 is about 285.9849495723.

The spelling of 23389963 in words is "twenty-three million, three hundred eighty-nine thousand, nine hundred sixty-three".