813347316 has 36 divisors (see below), whose sum is σ = 2084925024. Its totient is φ = 267296400.

The previous prime is 813347291. The next prime is 813347317. The reversal of 813347316 is 613743318.

813347316 is a `hidden beast` number, since 8 + 1 + 334 + 7 + 316 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813347317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156550 + ... + 161661.

It is an arithmetic number, because the mean of its divisors is an integer number (57914584).

Almost surely, 2^813347316 is an apocalyptic number.

It is an amenable number.

813347316 is an abundant number, since it is smaller than the sum of its proper divisors (1271577708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813347316 is a wasteful number, since it uses less digits than its factorization.

813347316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318292 (or 318287 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 813347316 is about 28519.2446604043. The cubic root of 813347316 is about 933.4520474280.

The spelling of 813347316 in words is "eight hundred thirteen million, three hundred forty-seven thousand, three hundred sixteen".