426633169 has 2 divisors, whose sum is σ = 426633170. Its totient is φ = 426633168.

The previous prime is 426633161. The next prime is 426633211. The reversal of 426633169 is 961336624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369100944 + 57532225 = 19212^2 + 7585^2 .

It is a cyclic number.

It is not a de Polignac number, because 426633169 - 2³ = 426633161 is a prime.

It is a super-2 number, since 2×426633169² = 364031721781965122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_22678744 and since 426633169 and 22678744 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 (426633161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213316584 + 213316585.

It is an arithmetic number, because the mean of its divisors is an integer number (213316585).

Almost surely, 2^426633169 is an apocalyptic number.

It is an amenable number.

426633169 is a deficient number, since it is larger than the sum of its proper divisors (1).

426633169 is an equidigital number, since it uses as much as digits as its factorization.

426633169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The square root of 426633169 is about 20655.1003144502. The cubic root of 426633169 is about 752.8091210197.

The spelling of 426633169 in words is "four hundred twenty-six million, six hundred thirty-three thousand, one hundred sixty-nine".