828868 has 24 divisors (see below), whose sum is σ = 1527680. Its totient is φ = 393120.

The previous prime is 828859. The next prime is 828871. The reversal of 828868 is 868828.

It is a super-2 number, since 2×828868² = 1374044322848, which contains 22 as substring.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 828868.

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, 10453 + ... + 10531.

2⁸²⁸⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

828868 is a deficient number, since it is larger than the sum of its proper divisors (698812).

828868 is a wasteful number, since it uses less digits than its factorization.

828868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 185 counting only the distinct ones).

The product of its digits is 49152, while the sum is 40.

The square root of 828868 is about 910.4218802292. The cubic root of 828868 is about 93.9352201932.

Subtracting from 828868 its sum of digits (40), we obtain a palindrome (828828).

The spelling of 828868 in words is "eight hundred twenty-eight thousand, eight hundred sixty-eight".