876785456 has 20 divisors (see below), whose sum is σ = 1699633032. Its totient is φ = 438170496.

The previous prime is 876785401. The next prime is 876785471. The reversal of 876785456 is 654587678.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21371 + ... + 47013.

Almost surely, 2^876785456 is an apocalyptic number.

876785456 is the 17096-th octagonal number.

It is an amenable number.

876785456 is a deficient number, since it is larger than the sum of its proper divisors (822847576).

876785456 is a wasteful number, since it uses less digits than its factorization.

876785456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27788 (or 27782 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 56.

The square root of 876785456 is about 29610.5632502997. The cubic root of 876785456 is about 957.1157121453.

The spelling of 876785456 in words is "eight hundred seventy-six million, seven hundred eighty-five thousand, four hundred fifty-six".