875121672 has 32 divisors (see below), whose sum is σ = 2195606880. Its totient is φ = 290666880.

The previous prime is 875121659. The next prime is 875121673. The reversal of 875121672 is 276121578.

It is a self number, because there is not a number n which added to its sum of digits gives 875121672.

It is not an unprimeable number, because it can be changed into a prime (875121673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58138 + ... + 71625.

It is an arithmetic number, because the mean of its divisors is an integer number (68612715).

Almost surely, 2^875121672 is an apocalyptic number.

It is an amenable number.

875121672 is an abundant number, since it is smaller than the sum of its proper divisors (1320485208).

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

875121672 is a wasteful number, since it uses less digits than its factorization.

875121672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130053 (or 130049 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 875121672 is about 29582.4554761771. The cubic root of 875121672 is about 956.5099226958.

The spelling of 875121672 in words is "eight hundred seventy-five million, one hundred twenty-one thousand, six hundred seventy-two".