23966643 has 8 divisors (see below), whose sum is σ = 32189328. Its totient is φ = 15860864.

The previous prime is 23966641. The next prime is 23966659. The reversal of 23966643 is 34666932.

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 23966643 - 2¹ = 23966641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23966641) 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, 28746 + ... + 29567.

It is an arithmetic number, because the mean of its divisors is an integer number (4023666).

Almost surely, 2^23966643 is an apocalyptic number.

23966643 is a deficient number, since it is larger than the sum of its proper divisors (8222685).

23966643 is a wasteful number, since it uses less digits than its factorization.

23966643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58453.

The product of its digits is 139968, while the sum is 39.

The square root of 23966643 is about 4895.5738172353. The cubic root of 23966643 is about 288.3162156595.

The spelling of 23966643 in words is "twenty-three million, nine hundred sixty-six thousand, six hundred forty-three".