828071317 has 4 divisors (see below), whose sum is σ = 828225580. Its totient is φ = 827917056.

The previous prime is 828071297. The next prime is 828071341. The reversal of 828071317 is 713170828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52504516 + 775566801 = 7246^2 + 27849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-828071317 is a prime.

It is a super-2 number, since 2×828071317² = 1371404212076228978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828071117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68778 + ... + 79915.

It is an arithmetic number, because the mean of its divisors is an integer number (207056395).

Almost surely, 2^828071317 is an apocalyptic number.

It is an amenable number.

828071317 is a deficient number, since it is larger than the sum of its proper divisors (154263).

828071317 is a wasteful number, since it uses less digits than its factorization.

828071317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154262.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 828071317 is about 28776.2283317324. The cubic root of 828071317 is about 939.0511464249.

It can be divided in two parts, 8280 and 71317, that added together give a palindrome (79597).

The spelling of 828071317 in words is "eight hundred twenty-eight million, seventy-one thousand, three hundred seventeen".