422819707 has 2 divisors, whose sum is σ = 422819708. Its totient is φ = 422819706.

The previous prime is 422819651. The next prime is 422819713. The reversal of 422819707 is 707918224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422819707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422819707.

It is not a weakly prime, because it can be changed into another prime (422819717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211409853 + 211409854.

It is an arithmetic number, because the mean of its divisors is an integer number (211409854).

Almost surely, 2^422819707 is an apocalyptic number.

422819707 is a deficient number, since it is larger than the sum of its proper divisors (1).

422819707 is an equidigital number, since it uses as much as digits as its factorization.

422819707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 422819707 is about 20562.5802612415. The cubic root of 422819707 is about 750.5594090154.

The spelling of 422819707 in words is "four hundred twenty-two million, eight hundred nineteen thousand, seven hundred seven".