808045213 has 2 divisors, whose sum is σ = 808045214. Its totient is φ = 808045212.

The previous prime is 808045181. The next prime is 808045229. The reversal of 808045213 is 312540808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795070809 + 12974404 = 28197^2 + 3602^2 .

It is a cyclic number.

It is not a de Polignac number, because 808045213 - 2⁵ = 808045181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808045283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404022606 + 404022607.

It is an arithmetic number, because the mean of its divisors is an integer number (404022607).

Almost surely, 2^808045213 is an apocalyptic number.

It is an amenable number.

808045213 is a deficient number, since it is larger than the sum of its proper divisors (1).

808045213 is an equidigital number, since it uses as much as digits as its factorization.

808045213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 808045213 is about 28426.1360898733. The cubic root of 808045213 is about 931.4192739571.

The spelling of 808045213 in words is "eight hundred eight million, forty-five thousand, two hundred thirteen".