828978875 has 16 divisors (see below), whose sum is σ = 1048749312. Its totient is φ = 654091200.

The previous prime is 828978869. The next prime is 828978901. The reversal of 828978875 is 578879828.

It is a happy number.

It is not a de Polignac number, because 828978875 - 2⁴ = 828978859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36299 + ... + 54548.

It is an arithmetic number, because the mean of its divisors is an integer number (65546832).

Almost surely, 2^828978875 is an apocalyptic number.

828978875 is a deficient number, since it is larger than the sum of its proper divisors (219770437).

828978875 is an equidigital number, since it uses as much as digits as its factorization.

828978875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90935 (or 90925 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 62.

The square root of 828978875 is about 28791.9932446505. The cubic root of 828978875 is about 939.3940847694.

The spelling of 828978875 in words is "eight hundred twenty-eight million, nine hundred seventy-eight thousand, eight hundred seventy-five".