22939379 has 2 divisors, whose sum is σ = 22939380. Its totient is φ = 22939378.

The previous prime is 22939369. The next prime is 22939381. The reversal of 22939379 is 97393922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22939379 is a prime.

Together with 22939381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22939369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11469689 + 11469690.

It is an arithmetic number, because the mean of its divisors is an integer number (11469690).

Almost surely, 2^22939379 is an apocalyptic number.

22939379 is a deficient number, since it is larger than the sum of its proper divisors (1).

22939379 is an equidigital number, since it uses as much as digits as its factorization.

22939379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 44.

The square root of 22939379 is about 4789.5071771530. The cubic root of 22939379 is about 284.1366258905.

The spelling of 22939379 in words is "twenty-two million, nine hundred thirty-nine thousand, three hundred seventy-nine".