422746679 has 2 divisors, whose sum is σ = 422746680. Its totient is φ = 422746678.

The previous prime is 422746663. The next prime is 422746691. The reversal of 422746679 is 976647224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422746679 - 2⁴ = 422746663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422746609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211373339 + 211373340.

It is an arithmetic number, because the mean of its divisors is an integer number (211373340).

Almost surely, 2^422746679 is an apocalyptic number.

422746679 is a deficient number, since it is larger than the sum of its proper divisors (1).

422746679 is an equidigital number, since it uses as much as digits as its factorization.

422746679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 47.

The square root of 422746679 is about 20560.8044346519. The cubic root of 422746679 is about 750.5161951604.

The spelling of 422746679 in words is "four hundred twenty-two million, seven hundred forty-six thousand, six hundred seventy-nine".