333664213 has 2 divisors, whose sum is σ = 333664214. Its totient is φ = 333664212.

The previous prime is 333664183. The next prime is 333664223. The reversal of 333664213 is 312466333.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313396209 + 20268004 = 17703^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 333664213 - 2⁵ = 333664181 is a prime.

It is a super-2 number, since 2×333664213² = 222663614073818738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (333664223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166832106 + 166832107.

It is an arithmetic number, because the mean of its divisors is an integer number (166832107).

Almost surely, 2^333664213 is an apocalyptic number.

It is an amenable number.

333664213 is a deficient number, since it is larger than the sum of its proper divisors (1).

333664213 is an equidigital number, since it uses as much as digits as its factorization.

333664213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 31.

The square root of 333664213 is about 18266.4778487808. The cubic root of 333664213 is about 693.5906176297.

The spelling of 333664213 in words is "three hundred thirty-three million, six hundred sixty-four thousand, two hundred thirteen".