23668247 has 4 divisors (see below), whose sum is σ = 23749320. Its totient is φ = 23587176.

The previous prime is 23668241. The next prime is 23668261. The reversal of 23668247 is 74286632.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23668247 - 2⁴ = 23668231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23668247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23668241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40097 + ... + 40682.

It is an arithmetic number, because the mean of its divisors is an integer number (5937330).

Almost surely, 2^23668247 is an apocalyptic number.

23668247 is a deficient number, since it is larger than the sum of its proper divisors (81073).

23668247 is an equidigital number, since it uses as much as digits as its factorization.

23668247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81072.

The product of its digits is 96768, while the sum is 38.

The square root of 23668247 is about 4865.0022610478. The cubic root of 23668247 is about 287.1146575349.

The spelling of 23668247 in words is "twenty-three million, six hundred sixty-eight thousand, two hundred forty-seven".