422844907 has 2 divisors, whose sum is σ = 422844908. Its totient is φ = 422844906.

The previous prime is 422844889. The next prime is 422844923. The reversal of 422844907 is 709448224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422844907 - 2¹¹ = 422842859 is a prime.

It is equal to p_22487737 and since 422844907 and 22487737 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422844907.

It is not a weakly prime, because it can be changed into another prime (422844967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211422453 + 211422454.

It is an arithmetic number, because the mean of its divisors is an integer number (211422454).

Almost surely, 2^422844907 is an apocalyptic number.

422844907 is a deficient number, since it is larger than the sum of its proper divisors (1).

422844907 is an equidigital number, since it uses as much as digits as its factorization.

422844907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 422844907 is about 20563.1930156773. The cubic root of 422844907 is about 750.5743198005.

The spelling of 422844907 in words is "four hundred twenty-two million, eight hundred forty-four thousand, nine hundred seven".