23663443 has 8 divisors (see below), whose sum is σ = 24016608. Its totient is φ = 23313024.

The previous prime is 23663429. The next prime is 23663477. The reversal of 23663443 is 34436632.

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 23663443 - 2²¹ = 21566291 is a prime.

It is a super-2 number, since 2×23663443² = 1119917069228498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23663413) 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, 21730 + ... + 22792.

It is an arithmetic number, because the mean of its divisors is an integer number (3002076).

Almost surely, 2^23663443 is an apocalyptic number.

23663443 is a deficient number, since it is larger than the sum of its proper divisors (353165).

23663443 is a wasteful number, since it uses less digits than its factorization.

23663443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373.

The product of its digits is 31104, while the sum is 31.

The square root of 23663443 is about 4864.5085054916. The cubic root of 23663443 is about 287.0952307738.

The spelling of 23663443 in words is "twenty-three million, six hundred sixty-three thousand, four hundred forty-three".