22864423 has 4 divisors (see below), whose sum is σ = 22888008. Its totient is φ = 22840840.

The previous prime is 22864399. The next prime is 22864459. The reversal of 22864423 is 32446822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32446822 = 2 ⋅16223411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22864423 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 (22864493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10273 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (5722002).

Almost surely, 2^22864423 is an apocalyptic number.

22864423 is a deficient number, since it is larger than the sum of its proper divisors (23585).

22864423 is a wasteful number, since it uses less digits than its factorization.

22864423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23584.

The product of its digits is 18432, while the sum is 31.

The square root of 22864423 is about 4781.6757522860. The cubic root of 22864423 is about 283.8268095348.

The spelling of 22864423 in words is "twenty-two million, eight hundred sixty-four thousand, four hundred twenty-three".