422922397 has 2 divisors, whose sum is σ = 422922398. Its totient is φ = 422922396.

The previous prime is 422922391. The next prime is 422922427. The reversal of 422922397 is 793229224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413349561 + 9572836 = 20331^2 + 3094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422922397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422922391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211461198 + 211461199.

It is an arithmetic number, because the mean of its divisors is an integer number (211461199).

Almost surely, 2^422922397 is an apocalyptic number.

It is an amenable number.

422922397 is a deficient number, since it is larger than the sum of its proper divisors (1).

422922397 is an equidigital number, since it uses as much as digits as its factorization.

422922397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 422922397 is about 20565.0771211780. The cubic root of 422922397 is about 750.6201667533.

The spelling of 422922397 in words is "four hundred twenty-two million, nine hundred twenty-two thousand, three hundred ninety-seven".