813271713 has 4 divisors (see below), whose sum is σ = 1084362288. Its totient is φ = 542181140.

The previous prime is 813271631. The next prime is 813271727. The reversal of 813271713 is 317172318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 813271713 - 2⁸ = 813271457 is a prime.

It is a super-2 number, since 2×813271713² = 1322821758331908738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813271733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135545283 + ... + 135545288.

It is an arithmetic number, because the mean of its divisors is an integer number (271090572).

Almost surely, 2^813271713 is an apocalyptic number.

It is an amenable number.

813271713 is a deficient number, since it is larger than the sum of its proper divisors (271090575).

813271713 is a wasteful number, since it uses less digits than its factorization.

813271713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271090574.

The product of its digits is 7056, while the sum is 33.

The square root of 813271713 is about 28517.9191562077. The cubic root of 813271713 is about 933.4231241704.

The spelling of 813271713 in words is "eight hundred thirteen million, two hundred seventy-one thousand, seven hundred thirteen".