828680 has 16 divisors (see below), whose sum is σ = 1864620. Its totient is φ = 331456.

The previous prime is 828677. The next prime is 828691. The reversal of 828680 is 86828.

It can be written as a sum of positive squares in 2 ways, for example, as 708964 + 119716 = 842^2 + 346^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10319 + ... + 10398.

2⁸²⁸⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

828680 is an abundant number, since it is smaller than the sum of its proper divisors (1035940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828680 is a wasteful number, since it uses less digits than its factorization.

828680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20728 (or 20724 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 828680 is about 910.3186255372. The cubic root of 828680 is about 93.9281176723.

The spelling of 828680 in words is "eight hundred twenty-eight thousand, six hundred eighty".