422388797 has 2 divisors, whose sum is σ = 422388798. Its totient is φ = 422388796.

The previous prime is 422388793. The next prime is 422388809. The reversal of 422388797 is 797883224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418570681 + 3818116 = 20459^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 422388797 - 2² = 422388793 is a prime.

It is a super-2 number, since 2×422388797² = 356824591662214418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422388793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211194398 + 211194399.

It is an arithmetic number, because the mean of its divisors is an integer number (211194399).

Almost surely, 2^422388797 is an apocalyptic number.

It is an amenable number.

422388797 is a deficient number, since it is larger than the sum of its proper divisors (1).

422388797 is an equidigital number, since it uses as much as digits as its factorization.

422388797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 422388797 is about 20552.0995764423. The cubic root of 422388797 is about 750.3043487754.

The spelling of 422388797 in words is "four hundred twenty-two million, three hundred eighty-eight thousand, seven hundred ninety-seven".