23563663 has 2 divisors, whose sum is σ = 23563664. Its totient is φ = 23563662.

The previous prime is 23563637. The next prime is 23563679. The reversal of 23563663 is 36636532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23563663 is a prime.

It is equal to p_1481479 and since 23563663 and 1481479 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23563633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11781831 + 11781832.

It is an arithmetic number, because the mean of its divisors is an integer number (11781832).

Almost surely, 2^23563663 is an apocalyptic number.

23563663 is a deficient number, since it is larger than the sum of its proper divisors (1).

23563663 is an equidigital number, since it uses as much as digits as its factorization.

23563663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 34.

The square root of 23563663 is about 4854.2417533535. The cubic root of 23563663 is about 286.6911374159.

The spelling of 23563663 in words is "twenty-three million, five hundred sixty-three thousand, six hundred sixty-three".