422979233 has 2 divisors, whose sum is σ = 422979234. Its totient is φ = 422979232.

The previous prime is 422979229. The next prime is 422979253. The reversal of 422979233 is 332979224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345327889 + 77651344 = 18583^2 + 8812^2 .

It is a cyclic number.

It is not a de Polignac number, because 422979233 - 2² = 422979229 is a prime.

It is a super-2 number, since 2×422979233² = 357822863098536578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422979253) 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 as a sum of consecutive naturals, namely, 211489616 + 211489617.

It is an arithmetic number, because the mean of its divisors is an integer number (211489617).

Almost surely, 2^422979233 is an apocalyptic number.

It is an amenable number.

422979233 is a deficient number, since it is larger than the sum of its proper divisors (1).

422979233 is an equidigital number, since it uses as much as digits as its factorization.

422979233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 422979233 is about 20566.4589319601. The cubic root of 422979233 is about 750.6537902085.

Subtracting from 422979233 its reverse (332979224), we obtain a palindrome (90000009).

The spelling of 422979233 in words is "four hundred twenty-two million, nine hundred seventy-nine thousand, two hundred thirty-three".