694497313 has 2 divisors, whose sum is σ = 694497314. Its totient is φ = 694497312.

The previous prime is 694497301. The next prime is 694497337. The reversal of 694497313 is 313794496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415874449 + 278622864 = 20393^2 + 16692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694497313 is a prime.

It is not a weakly prime, because it can be changed into another prime (694497373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347248656 + 347248657.

It is an arithmetic number, because the mean of its divisors is an integer number (347248657).

Almost surely, 2^694497313 is an apocalyptic number.

It is an amenable number.

694497313 is a deficient number, since it is larger than the sum of its proper divisors (1).

694497313 is an equidigital number, since it uses as much as digits as its factorization.

694497313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 694497313 is about 26353.3169259583. The cubic root of 694497313 is about 885.5712795714.

The spelling of 694497313 in words is "six hundred ninety-four million, four hundred ninety-seven thousand, three hundred thirteen".