826130785 has 8 divisors (see below), whose sum is σ = 991535400. Its totient is φ = 660785664.

The previous prime is 826130777. The next prime is 826130819. The reversal of 826130785 is 587031628.

It can be written as a sum of positive squares in 4 ways, for example, as 2211169 + 823919616 = 1487^2 + 28704^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 826130785 - 2³ = 826130777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25791 + ... + 48139.

It is an arithmetic number, because the mean of its divisors is an integer number (123941925).

Almost surely, 2^826130785 is an apocalyptic number.

It is an amenable number.

826130785 is a deficient number, since it is larger than the sum of its proper divisors (165404615).

826130785 is a wasteful number, since it uses less digits than its factorization.

826130785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29747.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 826130785 is about 28742.4909324157. The cubic root of 826130785 is about 938.3170373102.

The spelling of 826130785 in words is "eight hundred twenty-six million, one hundred thirty thousand, seven hundred eighty-five".