694996213 has 2 divisors, whose sum is σ = 694996214. Its totient is φ = 694996212.

The previous prime is 694996199. The next prime is 694996219. The reversal of 694996213 is 312699496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 691584804 + 3411409 = 26298^2 + 1847^2 .

It is a cyclic number.

It is not a de Polignac number, because 694996213 - 2²⁹ = 158125301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694996219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347498106 + 347498107.

It is an arithmetic number, because the mean of its divisors is an integer number (347498107).

Almost surely, 2^694996213 is an apocalyptic number.

It is an amenable number.

694996213 is a deficient number, since it is larger than the sum of its proper divisors (1).

694996213 is an equidigital number, since it uses as much as digits as its factorization.

694996213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 49.

The square root of 694996213 is about 26362.7808282814. The cubic root of 694996213 is about 885.7832821963.

The spelling of 694996213 in words is "six hundred ninety-four million, nine hundred ninety-six thousand, two hundred thirteen".