867883878 has 24 divisors (see below), whose sum is σ = 1924147368. Its totient is φ = 282566592.

The previous prime is 867883823. The next prime is 867883937. The reversal of 867883878 is 878388768.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559875 + ... + 561422.

It is an arithmetic number, because the mean of its divisors is an integer number (80172807).

Almost surely, 2^867883878 is an apocalyptic number.

867883878 is an abundant number, since it is smaller than the sum of its proper divisors (1056263490).

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

867883878 is a wasteful number, since it uses less digits than its factorization.

867883878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121348 (or 1121345 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 63.

The square root of 867883878 is about 29459.8689406453. The cubic root of 867883878 is about 953.8656443571.

It can be divided in two parts, 8678838 and 78, that added together give a square (8678916 = 2946²).

The spelling of 867883878 in words is "eight hundred sixty-seven million, eight hundred eighty-three thousand, eight hundred seventy-eight".