811072317 has 24 divisors (see below), whose sum is σ = 1190411712. Its totient is φ = 490842880.

The previous prime is 811072259. The next prime is 811072331. The reversal of 811072317 is 713270118.

It is not a de Polignac number, because 811072317 - 2¹⁸ = 810810173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811072337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355693 + ... + 357965.

It is an arithmetic number, because the mean of its divisors is an integer number (49600488).

Almost surely, 2^811072317 is an apocalyptic number.

It is an amenable number.

811072317 is a deficient number, since it is larger than the sum of its proper divisors (379339395).

811072317 is a wasteful number, since it uses less digits than its factorization.

811072317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 811072317 is about 28479.3314001576. The cubic root of 811072317 is about 932.5809207976.

The spelling of 811072317 in words is "eight hundred eleven million, seventy-two thousand, three hundred seventeen".