813696349 has 2 divisors, whose sum is σ = 813696350. Its totient is φ = 813696348.

The previous prime is 813696343. The next prime is 813696379. The reversal of 813696349 is 943696318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 766293124 + 47403225 = 27682^2 + 6885^2 .

It is a cyclic number.

It is not a de Polignac number, because 813696349 - 2¹³ = 813688157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813696343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406848174 + 406848175.

It is an arithmetic number, because the mean of its divisors is an integer number (406848175).

Almost surely, 2^813696349 is an apocalyptic number.

It is an amenable number.

813696349 is a deficient number, since it is larger than the sum of its proper divisors (1).

813696349 is an equidigital number, since it uses as much as digits as its factorization.

813696349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The square root of 813696349 is about 28525.3632579850. The cubic root of 813696349 is about 933.5855529095.

The spelling of 813696349 in words is "eight hundred thirteen million, six hundred ninety-six thousand, three hundred forty-nine".