422849491 has 2 divisors, whose sum is σ = 422849492. Its totient is φ = 422849490.

The previous prime is 422849443. The next prime is 422849533. The reversal of 422849491 is 194948224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422849491 - 2⁷ = 422849363 is a prime.

It is a super-3 number, since 3×422849491³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (422849191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211424745 + 211424746.

It is an arithmetic number, because the mean of its divisors is an integer number (211424746).

Almost surely, 2^422849491 is an apocalyptic number.

422849491 is a deficient number, since it is larger than the sum of its proper divisors (1).

422849491 is an equidigital number, since it uses as much as digits as its factorization.

422849491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 422849491 is about 20563.3044766643. The cubic root of 422849491 is about 750.5770320796.

The spelling of 422849491 in words is "four hundred twenty-two million, eight hundred forty-nine thousand, four hundred ninety-one".