422245997 has 2 divisors, whose sum is σ = 422245998. Its totient is φ = 422245996.

The previous prime is 422245991. The next prime is 422246023. The reversal of 422245997 is 799542224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268337161 + 153908836 = 16381^2 + 12406^2 .

It is a cyclic number.

It is not a de Polignac number, because 422245997 - 2⁶ = 422245933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422245991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211122998 + 211122999.

It is an arithmetic number, because the mean of its divisors is an integer number (211122999).

Almost surely, 2^422245997 is an apocalyptic number.

It is an amenable number.

422245997 is a deficient number, since it is larger than the sum of its proper divisors (1).

422245997 is an equidigital number, since it uses as much as digits as its factorization.

422245997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 422245997 is about 20548.6251851553. The cubic root of 422245997 is about 750.2197856601.

The spelling of 422245997 in words is "four hundred twenty-two million, two hundred forty-five thousand, nine hundred ninety-seven".