22302979 has 4 divisors (see below), whose sum is σ = 23476840. Its totient is φ = 21129120.

The previous prime is 22302953. The next prime is 22302989. The reversal of 22302979 is 97920322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97920322 = 2 ⋅48960161.

It is a cyclic number.

It is not a de Polignac number, because 22302979 - 2¹¹ = 22300931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22302989) 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, 586902 + ... + 586939.

It is an arithmetic number, because the mean of its divisors is an integer number (5869210).

Almost surely, 2^22302979 is an apocalyptic number.

22302979 is a deficient number, since it is larger than the sum of its proper divisors (1173861).

22302979 is a wasteful number, since it uses less digits than its factorization.

22302979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173860.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 22302979 is about 4722.6029898775. The cubic root of 22302979 is about 281.4843745763.

The spelling of 22302979 in words is "twenty-two million, three hundred two thousand, nine hundred seventy-nine".