23647423 has 2 divisors, whose sum is σ = 23647424. Its totient is φ = 23647422.

The previous prime is 23647409. The next prime is 23647453. The reversal of 23647423 is 32474632.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23647423 is a prime.

It is a super-2 number, since 2×23647423² = 1118401229081858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23647453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11823711 + 11823712.

It is an arithmetic number, because the mean of its divisors is an integer number (11823712).

Almost surely, 2^23647423 is an apocalyptic number.

23647423 is a deficient number, since it is larger than the sum of its proper divisors (1).

23647423 is an equidigital number, since it uses as much as digits as its factorization.

23647423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 31.

The square root of 23647423 is about 4862.8616060916. The cubic root of 23647423 is about 287.0304289347.

The spelling of 23647423 in words is "twenty-three million, six hundred forty-seven thousand, four hundred twenty-three".