828442825 has 12 divisors (see below), whose sum is σ = 1174022080. Its totient is φ = 568074960.

The previous prime is 828442789. The next prime is 828442829. The reversal of 828442825 is 528244828.

It is not a de Polignac number, because 828442825 - 2¹¹ = 828440777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828442829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2366805 + ... + 2367154.

Almost surely, 2^828442825 is an apocalyptic number.

It is an amenable number.

828442825 is a deficient number, since it is larger than the sum of its proper divisors (345579255).

828442825 is a wasteful number, since it uses less digits than its factorization.

828442825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733976 (or 4733971 counting only the distinct ones).

The product of its digits is 327680, while the sum is 43.

The square root of 828442825 is about 28782.6827276402. The cubic root of 828442825 is about 939.1915581854.

The spelling of 828442825 in words is "eight hundred twenty-eight million, four hundred forty-two thousand, eight hundred twenty-five".