875128830 has 32 divisors (see below), whose sum is σ = 2110278528. Its totient is φ = 232260000.

The previous prime is 875128799. The next prime is 875128831. The reversal of 875128830 is 38821578.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875128831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62796 + ... + 75455.

It is an arithmetic number, because the mean of its divisors is an integer number (65946204).

Almost surely, 2^875128830 is an apocalyptic number.

875128830 is an abundant number, since it is smaller than the sum of its proper divisors (1235149698).

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

875128830 is a wasteful number, since it uses less digits than its factorization.

875128830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138472.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 875128830 is about 29582.5764598015. The cubic root of 875128830 is about 956.5125305920.

The spelling of 875128830 in words is "eight hundred seventy-five million, one hundred twenty-eight thousand, eight hundred thirty".