828426 has 8 divisors (see below), whose sum is σ = 1656864. Its totient is φ = 276140.

The previous prime is 828409. The next prime is 828431. The reversal of 828426 is 624828.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

828426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 828393 and 828402.

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, 69030 + ... + 69041.

It is an arithmetic number, because the mean of its divisors is an integer number (207108).

2⁸²⁸⁴²⁶ is an apocalyptic number.

828426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

828426 is a wasteful number, since it uses less digits than its factorization.

828426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138076.

The product of its digits is 6144, while the sum is 30.

The square root of 828426 is about 910.1791032539. The cubic root of 828426 is about 93.9185200070.

The spelling of 828426 in words is "eight hundred twenty-eight thousand, four hundred twenty-six".