23621663 has 8 divisors (see below), whose sum is σ = 26030928. Its totient is φ = 21297024.

The previous prime is 23621657. The next prime is 23621669. The reversal of 23621663 is 36612632.

It is an interprime number because it is at equal distance from previous prime (23621657) and next prime (23621669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23621663 - 2⁶ = 23621599 is a prime.

It is a Duffinian number.

It is a congruent 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, 20570 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (3253866).

Almost surely, 2^23621663 is an apocalyptic number.

23621663 is a deficient number, since it is larger than the sum of its proper divisors (2409265).

23621663 is a wasteful number, since it uses less digits than its factorization.

23621663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42313.

The product of its digits is 7776, while the sum is 29.

The square root of 23621663 is about 4860.2122381641. The cubic root of 23621663 is about 286.9261668298.

The spelling of 23621663 in words is "twenty-three million, six hundred twenty-one thousand, six hundred sixty-three".