422085613 has 2 divisors, whose sum is σ = 422085614. Its totient is φ = 422085612.

The previous prime is 422085583. The next prime is 422085641. The reversal of 422085613 is 316580224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390971529 + 31114084 = 19773^2 + 5578^2 .

It is a cyclic number.

It is not a de Polignac number, because 422085613 - 2⁹ = 422085101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422085683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211042806 + 211042807.

It is an arithmetic number, because the mean of its divisors is an integer number (211042807).

Almost surely, 2^422085613 is an apocalyptic number.

It is an amenable number.

422085613 is a deficient number, since it is larger than the sum of its proper divisors (1).

422085613 is an equidigital number, since it uses as much as digits as its factorization.

422085613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 422085613 is about 20544.7222663145. The cubic root of 422085613 is about 750.1247869402.

The spelling of 422085613 in words is "four hundred twenty-two million, eighty-five thousand, six hundred thirteen".