422997698 has 6 divisors (see below), whose sum is σ = 634540179. Its totient is φ = 211484306.

The previous prime is 422997661. The next prime is 422997709. The reversal of 422997698 is 896799224.

It can be written as a sum of positive squares in only one way, i.e., 211498849 + 211498849 = 14543^2 + 14543^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14543.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 21815 + ... + 36357.

Almost surely, 2^422997698 is an apocalyptic number.

422997698 is a deficient number, since it is larger than the sum of its proper divisors (211542481).

422997698 is an frugal number, since it uses more digits than its factorization.

422997698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29088 (or 14545 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 422997698 is about 20566.9078375919. The cubic root of 422997698 is about 750.6647132196.

The spelling of 422997698 in words is "four hundred twenty-two million, nine hundred ninety-seven thousand, six hundred ninety-eight".