23422643 has 4 divisors (see below), whose sum is σ = 23558208. Its totient is φ = 23287080.

The previous prime is 23422627. The next prime is 23422657. The reversal of 23422643 is 34622432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23422643 - 2⁴ = 23422627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23422043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67523 + ... + 67868.

It is an arithmetic number, because the mean of its divisors is an integer number (5889552).

Almost surely, 2^23422643 is an apocalyptic number.

23422643 is a deficient number, since it is larger than the sum of its proper divisors (135565).

23422643 is a wasteful number, since it uses less digits than its factorization.

23422643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135564.

The product of its digits is 6912, while the sum is 26.

The square root of 23422643 is about 4839.6945151528. The cubic root of 23422643 is about 286.1180784540.

The spelling of 23422643 in words is "twenty-three million, four hundred twenty-two thousand, six hundred forty-three".