22279079 has 2 divisors, whose sum is σ = 22279080. Its totient is φ = 22279078.

The previous prime is 22279067. The next prime is 22279087. The reversal of 22279079 is 97097222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22279079 - 2⁴ = 22279063 is a prime.

It is a super-2 number, since 2×22279079² = 992714722176482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22279009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11139539 + 11139540.

It is an arithmetic number, because the mean of its divisors is an integer number (11139540).

Almost surely, 2^22279079 is an apocalyptic number.

22279079 is a deficient number, since it is larger than the sum of its proper divisors (1).

22279079 is an equidigital number, since it uses as much as digits as its factorization.

22279079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 22279079 is about 4720.0719274181. The cubic root of 22279079 is about 281.3837918836.

The spelling of 22279079 in words is "twenty-two million, two hundred seventy-nine thousand, seventy-nine".