686681094 has 16 divisors (see below), whose sum is σ = 1498213440. Its totient is φ = 208085160.

The previous prime is 686681081. The next prime is 686681137. The reversal of 686681094 is 490186686.

686681094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5202064 + ... + 5202195.

It is an arithmetic number, because the mean of its divisors is an integer number (93638340).

Almost surely, 2^686681094 is an apocalyptic number.

686681094 is an abundant number, since it is smaller than the sum of its proper divisors (811532346).

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

686681094 is a wasteful number, since it uses less digits than its factorization.

686681094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404275.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 686681094 is about 26204.6006266075. The cubic root of 686681094 is about 882.2365175210.

The spelling of 686681094 in words is "six hundred eighty-six million, six hundred eighty-one thousand, ninety-four".