828425 has 12 divisors (see below), whose sum is σ = 1106700. Its totient is φ = 611520.

The previous prime is 828409. The next prime is 828431. The reversal of 828425 is 524828.

It can be written as a sum of positive squares in 6 ways, for example, as 5776 + 822649 = 76^2 + 907^2 .

It is not a de Polignac number, because 828425 - 2⁴ = 828409 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 828425.

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 11 ways as a sum of consecutive naturals, for example, 950 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (92225).

2⁸²⁸⁴²⁵ is an apocalyptic number.

It is an amenable number.

828425 is a deficient number, since it is larger than the sum of its proper divisors (278275).

828425 is a wasteful number, since it uses less digits than its factorization.

828425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2567 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 828425 is about 910.1785539113. The cubic root of 828425 is about 93.9184822171.

The spelling of 828425 in words is "eight hundred twenty-eight thousand, four hundred twenty-five".