22979823 has 16 divisors (see below), whose sum is σ = 31212000. Its totient is φ = 15036800.

The previous prime is 22979821. The next prime is 22979833. The reversal of 22979823 is 32897922.

It is a cyclic number.

It is not a de Polignac number, because 22979823 - 2¹ = 22979821 is a prime.

It is a super-2 number, since 2×22979823² = 1056144530222658, which contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 44893 + ... + 45401.

It is an arithmetic number, because the mean of its divisors is an integer number (1950750).

Almost surely, 2^22979823 is an apocalyptic number.

22979823 is a deficient number, since it is larger than the sum of its proper divisors (8232177).

22979823 is a wasteful number, since it uses less digits than its factorization.

22979823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its digits is 108864, while the sum is 42.

The square root of 22979823 is about 4793.7274640931. The cubic root of 22979823 is about 284.3035132148.

The spelling of 22979823 in words is "twenty-two million, nine hundred seventy-nine thousand, eight hundred twenty-three".