22979387 has 2 divisors, whose sum is σ = 22979388. Its totient is φ = 22979386.

The previous prime is 22979357. The next prime is 22979413. The reversal of 22979387 is 78397922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22979387 - 2¹² = 22975291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22979347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11489693 + 11489694.

It is an arithmetic number, because the mean of its divisors is an integer number (11489694).

Almost surely, 2^22979387 is an apocalyptic number.

22979387 is a deficient number, since it is larger than the sum of its proper divisors (1).

22979387 is an equidigital number, since it uses as much as digits as its factorization.

22979387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 22979387 is about 4793.6819877835. The cubic root of 22979387 is about 284.3017151575.

The spelling of 22979387 in words is "twenty-two million, nine hundred seventy-nine thousand, three hundred eighty-seven".