876788866 has 4 divisors (see below), whose sum is σ = 1315183302. Its totient is φ = 438394432.

The previous prime is 876788837. The next prime is 876788873. The reversal of 876788866 is 668887678.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 670033225 + 206755641 = 25885^2 + 14379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 876788798 and 876788807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219197215 + ... + 219197218.

Almost surely, 2^876788866 is an apocalyptic number.

876788866 is a deficient number, since it is larger than the sum of its proper divisors (438394436).

876788866 is a wasteful number, since it uses less digits than its factorization.

876788866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438394435.

The product of its digits is 43352064, while the sum is 64.

The square root of 876788866 is about 29610.6208310464. The cubic root of 876788866 is about 957.1169529507.

The spelling of 876788866 in words is "eight hundred seventy-six million, seven hundred eighty-eight thousand, eight hundred sixty-six".