23621668 has 24 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 10008768.

The previous prime is 23621657. The next prime is 23621669. The reversal of 23621668 is 86612632.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23621669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2248 + ... + 7231.

It is an arithmetic number, because the mean of its divisors is an integer number (1990800).

Almost surely, 2^23621668 is an apocalyptic number.

23621668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23621668 is an abundant number, since it is smaller than the sum of its proper divisors (24157532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23621668 is a wasteful number, since it uses less digits than its factorization.

23621668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579 (or 9577 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 23621668 is about 4860.2127525449. The cubic root of 23621668 is about 286.9261870743.

It can be divided in two parts, 236 and 21668, that added together give a square (21904 = 148²).

The spelling of 23621668 in words is "twenty-three million, six hundred twenty-one thousand, six hundred sixty-eight".