42922279 has 2 divisors, whose sum is σ = 42922280. Its totient is φ = 42922278.

The previous prime is 42922261. The next prime is 42922283. The reversal of 42922279 is 97222924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42922279 - 2¹⁷ = 42791207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42922219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461139 + 21461140.

It is an arithmetic number, because the mean of its divisors is an integer number (21461140).

Almost surely, 2^42922279 is an apocalyptic number.

42922279 is a deficient number, since it is larger than the sum of its proper divisors (1).

42922279 is an equidigital number, since it uses as much as digits as its factorization.

42922279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 42922279 is about 6551.5096733501. The cubic root of 42922279 is about 350.1286030808.

The spelling of 42922279 in words is "forty-two million, nine hundred twenty-two thousand, two hundred seventy-nine".