875981644 has 12 divisors (see below), whose sum is σ = 1623142584. Its totient is φ = 412226624.

The previous prime is 875981641. The next prime is 875981669. The reversal of 875981644 is 446189578.

875981644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 875981591 and 875981600.

It is not an unprimeable number, because it can be changed into a prime (875981641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6440974 + ... + 6441109.

It is an arithmetic number, because the mean of its divisors is an integer number (135261882).

Almost surely, 2^875981644 is an apocalyptic number.

It is an amenable number.

875981644 is a deficient number, since it is larger than the sum of its proper divisors (747160940).

875981644 is a wasteful number, since it uses less digits than its factorization.

875981644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12882104 (or 12882102 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 875981644 is about 29596.9870763901. The cubic root of 875981644 is about 956.8231372200.

The spelling of 875981644 in words is "eight hundred seventy-five million, nine hundred eighty-one thousand, six hundred forty-four".