683871855 has 16 divisors (see below), whose sum is σ = 1117476864. Its totient is φ = 356971040.

The previous prime is 683871829. The next prime is 683871863. The reversal of 683871855 is 558178386.

683871855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 683871855 - 2⁶ = 683871791 is a prime.

It is a super-2 number, since 2×683871855² = 935361428122282050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 683871798 and 683871807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484311 + ... + 485720.

It is an arithmetic number, because the mean of its divisors is an integer number (69842304).

Almost surely, 2^683871855 is an apocalyptic number.

683871855 is a deficient number, since it is larger than the sum of its proper divisors (433605009).

683871855 is a wasteful number, since it uses less digits than its factorization.

683871855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970086.

The product of its digits is 1612800, while the sum is 51.

The square root of 683871855 is about 26150.9436732214. The cubic root of 683871855 is about 881.0317852137.

The spelling of 683871855 in words is "six hundred eighty-three million, eight hundred seventy-one thousand, eight hundred fifty-five".