828636 has 24 divisors (see below), whose sum is σ = 1948800. Its totient is φ = 274032.

The previous prime is 828601. The next prime is 828637. The reversal of 828636 is 636828.

828636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 828597 and 828606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828637) by changing a digit.

828636 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (81200).

2⁸²⁸⁶³⁶ is an apocalyptic number.

It is an amenable number.

828636 is an abundant number, since it is smaller than the sum of its proper divisors (1120164).

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

828636 is a wasteful number, since it uses less digits than its factorization.

828636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 551 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 828636 is about 910.2944578542. The cubic root of 828636 is about 93.9264552251.

The spelling of 828636 in words is "eight hundred twenty-eight thousand, six hundred thirty-six".