22979822 has 4 divisors (see below), whose sum is σ = 34469736. Its totient is φ = 11489910.

The previous prime is 22979821. The next prime is 22979833. The reversal of 22979822 is 22897922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22897922 = 2 ⋅11448961.

It is a self number, because there is not a number n which added to its sum of digits gives 22979822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22979821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5744954 + ... + 5744957.

It is an arithmetic number, because the mean of its divisors is an integer number (8617434).

Almost surely, 2^22979822 is an apocalyptic number.

22979822 is a deficient number, since it is larger than the sum of its proper divisors (11489914).

22979822 is a wasteful number, since it uses less digits than its factorization.

22979822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11489913.

The product of its digits is 72576, while the sum is 41.

The square root of 22979822 is about 4793.7273597901. The cubic root of 22979822 is about 284.3035090909.

The spelling of 22979822 in words is "twenty-two million, nine hundred seventy-nine thousand, eight hundred twenty-two".