422968193 has 2 divisors, whose sum is σ = 422968194. Its totient is φ = 422968192.

The previous prime is 422968187. The next prime is 422968213. The reversal of 422968193 is 391869224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303874624 + 119093569 = 17432^2 + 10913^2 .

It is a cyclic number.

It is not a de Polignac number, because 422968193 - 2¹⁰ = 422967169 is a prime.

It is equal to p_22493987 and since 422968193 and 22493987 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (422968093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211484096 + 211484097.

It is an arithmetic number, because the mean of its divisors is an integer number (211484097).

Almost surely, 2^422968193 is an apocalyptic number.

It is an amenable number.

422968193 is a deficient number, since it is larger than the sum of its proper divisors (1).

422968193 is an equidigital number, since it uses as much as digits as its factorization.

422968193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 422968193 is about 20566.1905320358. The cubic root of 422968193 is about 750.6472593205.

The spelling of 422968193 in words is "four hundred twenty-two million, nine hundred sixty-eight thousand, one hundred ninety-three".