23423643 has 12 divisors (see below), whose sum is σ = 34215480. Its totient is φ = 15439776.

The previous prime is 23423623. The next prime is 23423663. The reversal of 23423643 is 34632432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23423623) and next prime (23423663).

It is not a de Polignac number, because 23423643 - 2⁵ = 23423611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23423623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13821 + ... + 15422.

It is an arithmetic number, because the mean of its divisors is an integer number (2851290).

Almost surely, 2^23423643 is an apocalyptic number.

23423643 is a deficient number, since it is larger than the sum of its proper divisors (10791837).

23423643 is a wasteful number, since it uses less digits than its factorization.

23423643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29338 (or 29335 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 23423643 is about 4839.7978263560. The cubic root of 23423643 is about 286.1221502121.

The spelling of 23423643 in words is "twenty-three million, four hundred twenty-three thousand, six hundred forty-three".