422353913 has 2 divisors, whose sum is σ = 422353914. Its totient is φ = 422353912.

The previous prime is 422353879. The next prime is 422353949. The reversal of 422353913 is 319353224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388562944 + 33790969 = 19712^2 + 5813^2 .

It is a cyclic number.

It is not a de Polignac number, because 422353913 - 2²⁰ = 421305337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422353913.

It is not a weakly prime, because it can be changed into another prime (422353973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211176956 + 211176957.

It is an arithmetic number, because the mean of its divisors is an integer number (211176957).

Almost surely, 2^422353913 is an apocalyptic number.

It is an amenable number.

422353913 is a deficient number, since it is larger than the sum of its proper divisors (1).

422353913 is an equidigital number, since it uses as much as digits as its factorization.

422353913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 422353913 is about 20551.2508865032. The cubic root of 422353913 is about 750.2836929738.

The spelling of 422353913 in words is "four hundred twenty-two million, three hundred fifty-three thousand, nine hundred thirteen".