828082557 has 6 divisors (see below), whose sum is σ = 1196119262. Its totient is φ = 552055032.

The previous prime is 828082531. The next prime is 828082603. The reversal of 828082557 is 755280828.

It can be written as a sum of positive squares in only one way, i.e., 744798681 + 83283876 = 27291^2 + 9126^2 .

It is not a de Polignac number, because 828082557 - 2¹¹ = 828080509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828081557) 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 5 ways as a sum of consecutive naturals, for example, 46004578 + ... + 46004595.

Almost surely, 2^828082557 is an apocalyptic number.

It is an amenable number.

828082557 is a deficient number, since it is larger than the sum of its proper divisors (368036705).

828082557 is a wasteful number, since it uses less digits than its factorization.

828082557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92009179 (or 92009176 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 828082557 is about 28776.4236311603. The cubic root of 828082557 is about 939.0553952083.

The spelling of 828082557 in words is "eight hundred twenty-eight million, eighty-two thousand, five hundred fifty-seven".