828727828 has 12 divisors (see below), whose sum is σ = 1470140980. Its totient is φ = 408687552.

The previous prime is 828727819. The next prime is 828727873.

828727828 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 387223684 + 441504144 = 19678^2 + 21012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418763 + ... + 1419346.

Almost surely, 2^828727828 is an apocalyptic number.

It is an amenable number.

828727828 is a deficient number, since it is larger than the sum of its proper divisors (641413152).

828727828 is a wasteful number, since it uses less digits than its factorization.

828727828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838186 (or 2838184 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 52.

The square root of 828727828 is about 28787.6332476291. The cubic root of 828727828 is about 939.2992468572.

The spelling of 828727828 in words is "eight hundred twenty-eight million, seven hundred twenty-seven thousand, eight hundred twenty-eight".