686533134 has 32 divisors (see below), whose sum is σ = 1661527296. Its totient is φ = 184613760.

The previous prime is 686533129. The next prime is 686533189. The reversal of 686533134 is 431335686.

686533134 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 = 686533092 and 686533101.

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, 480052 + ... + 481479.

It is an arithmetic number, because the mean of its divisors is an integer number (51922728).

Almost surely, 2^686533134 is an apocalyptic number.

686533134 is an abundant number, since it is smaller than the sum of its proper divisors (974994162).

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

686533134 is a wasteful number, since it uses less digits than its factorization.

686533134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961560.

The product of its digits is 155520, while the sum is 39.

The square root of 686533134 is about 26201.7773061294. Note that the first 3 decimals coincide. The cubic root of 686533134 is about 882.1731474487.

It can be divided in two parts, 6865331 and 34, that added together give a triangular number (6865365 = T₃₇₀₅).

The spelling of 686533134 in words is "six hundred eighty-six million, five hundred thirty-three thousand, one hundred thirty-four".