22397379 has 4 divisors (see below), whose sum is σ = 29863176. Its totient is φ = 14931584.

The previous prime is 22397351. The next prime is 22397393. The reversal of 22397379 is 97379322.

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 22397379 - 2⁹ = 22396867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22397379.

It is not an unprimeable number, because it can be changed into a prime (22397329) 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, 3732894 + ... + 3732899.

It is an arithmetic number, because the mean of its divisors is an integer number (7465794).

Almost surely, 2^22397379 is an apocalyptic number.

22397379 is a deficient number, since it is larger than the sum of its proper divisors (7465797).

22397379 is an equidigital number, since it uses as much as digits as its factorization.

22397379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7465796.

The product of its digits is 142884, while the sum is 42.

The square root of 22397379 is about 4732.5869247168. The cubic root of 22397379 is about 281.8809542288.

The spelling of 22397379 in words is "twenty-two million, three hundred ninety-seven thousand, three hundred seventy-nine".