22913279 has 2 divisors, whose sum is σ = 22913280. Its totient is φ = 22913278.

The previous prime is 22913273. The next prime is 22913311. The reversal of 22913279 is 97231922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22913279 - 2¹⁶ = 22847743 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22913273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11456639 + 11456640.

It is an arithmetic number, because the mean of its divisors is an integer number (11456640).

Almost surely, 2^22913279 is an apocalyptic number.

22913279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22913279 is an equidigital number, since it uses as much as digits as its factorization.

22913279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 22913279 is about 4786.7816954609. The cubic root of 22913279 is about 284.0288232004.

The spelling of 22913279 in words is "twenty-two million, nine hundred thirteen thousand, two hundred seventy-nine".