23309863 has 2 divisors, whose sum is σ = 23309864. Its totient is φ = 23309862.

The previous prime is 23309857. The next prime is 23309911. The reversal of 23309863 is 36890332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23309863 - 2¹³ = 23301671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23309813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11654931 + 11654932.

It is an arithmetic number, because the mean of its divisors is an integer number (11654932).

Almost surely, 2^23309863 is an apocalyptic number.

23309863 is a deficient number, since it is larger than the sum of its proper divisors (1).

23309863 is an equidigital number, since it uses as much as digits as its factorization.

23309863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 23309863 is about 4828.0288938655. The cubic root of 23309863 is about 285.6581200192.

The spelling of 23309863 in words is "twenty-three million, three hundred nine thousand, eight hundred sixty-three".