422797609 has 6 divisors (see below), whose sum is σ = 457822446. Its totient is φ = 390274560.

The previous prime is 422797607. The next prime is 422797621. The reversal of 422797609 is 906797224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 29648025 + 393149584 = 5445^2 + 19828^2 .

It is not a de Polignac number, because 422797609 - 2¹ = 422797607 is a prime.

It is a super-2 number, since 2×422797609² = 357515636352233762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422797607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1250712 + ... + 1251049.

It is an arithmetic number, because the mean of its divisors is an integer number (76303741).

Almost surely, 2^422797609 is an apocalyptic number.

It is an amenable number.

422797609 is a deficient number, since it is larger than the sum of its proper divisors (35024837).

422797609 is a wasteful number, since it uses less digits than its factorization.

422797609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501787 (or 2501774 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 422797609 is about 20562.0429189320. The cubic root of 422797609 is about 750.5463331894.

The spelling of 422797609 in words is "four hundred twenty-two million, seven hundred ninety-seven thousand, six hundred nine".