686152214 has 16 divisors (see below), whose sum is σ = 1123301520. Its totient is φ = 311746560.

The previous prime is 686152213. The next prime is 686152223. The reversal of 686152214 is 412251686.

686152214 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 not an unprimeable number, because it can be changed into a prime (686152211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54902 + ... + 66230.

It is an arithmetic number, because the mean of its divisors is an integer number (70206345).

Almost surely, 2^686152214 is an apocalyptic number.

686152214 is a deficient number, since it is larger than the sum of its proper divisors (437149306).

686152214 is a wasteful number, since it uses less digits than its factorization.

686152214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14095.

The product of its digits is 23040, while the sum is 35.

The square root of 686152214 is about 26194.5073250100. The cubic root of 686152214 is about 882.0099605863.

The spelling of 686152214 in words is "six hundred eighty-six million, one hundred fifty-two thousand, two hundred fourteen".