335638213 has 2 divisors, whose sum is σ = 335638214. Its totient is φ = 335638212.

The previous prime is 335638207. The next prime is 335638217. The reversal of 335638213 is 312836533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304746849 + 30891364 = 17457^2 + 5558^2 .

It is a cyclic number.

It is not a de Polignac number, because 335638213 - 2⁵ = 335638181 is a prime.

It is a super-2 number, since 2×335638213² = 225306020051666738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335638217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167819106 + 167819107.

It is an arithmetic number, because the mean of its divisors is an integer number (167819107).

Almost surely, 2^335638213 is an apocalyptic number.

It is an amenable number.

335638213 is a deficient number, since it is larger than the sum of its proper divisors (1).

335638213 is an equidigital number, since it uses as much as digits as its factorization.

335638213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 335638213 is about 18320.4315724275. The cubic root of 335638213 is about 694.9557192774.

The spelling of 335638213 in words is "three hundred thirty-five million, six hundred thirty-eight thousand, two hundred thirteen".