686485243 has 4 divisors (see below), whose sum is σ = 701091360. Its totient is φ = 671879128.

The previous prime is 686485231. The next prime is 686485249. The reversal of 686485243 is 342584686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 686485243 - 2¹⁷ = 686354171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 686485193 and 686485202.

It is not an unprimeable number, because it can be changed into a prime (686485249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7302988 + ... + 7303081.

It is an arithmetic number, because the mean of its divisors is an integer number (175272840).

Almost surely, 2^686485243 is an apocalyptic number.

686485243 is a deficient number, since it is larger than the sum of its proper divisors (14606117).

686485243 is a wasteful number, since it uses less digits than its factorization.

686485243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606116.

The product of its digits is 1105920, while the sum is 46.

The square root of 686485243 is about 26200.8634018041. The cubic root of 686485243 is about 882.1526341700.

The spelling of 686485243 in words is "six hundred eighty-six million, four hundred eighty-five thousand, two hundred forty-three".