875709828 has 144 divisors (see below), whose sum is σ = 2611574784. Its totient is φ = 242239680.

The previous prime is 875709799. The next prime is 875709841. The reversal of 875709828 is 828907578.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1266963 + ... + 1267653.

It is an arithmetic number, because the mean of its divisors is an integer number (18135936).

Almost surely, 2^875709828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 875709828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305787392).

875709828 is an abundant number, since it is smaller than the sum of its proper divisors (1735864956).

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

875709828 is a wasteful number, since it uses less digits than its factorization.

875709828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 875709828 is about 29592.3947662233. The cubic root of 875709828 is about 956.7241599773.

The spelling of 875709828 in words is "eight hundred seventy-five million, seven hundred nine thousand, eight hundred twenty-eight".