686336349 has 8 divisors (see below), whose sum is σ = 923213952. Its totient is φ = 453508160.

The previous prime is 686336323. The next prime is 686336363. The reversal of 686336349 is 943633686.

686336349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 686336349 - 2¹⁵ = 686303581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686336298 and 686336307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686336149) 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, 1011957 + ... + 1012634.

It is an arithmetic number, because the mean of its divisors is an integer number (115401744).

Almost surely, 2^686336349 is an apocalyptic number.

It is an amenable number.

686336349 is a deficient number, since it is larger than the sum of its proper divisors (236877603).

686336349 is a wasteful number, since it uses less digits than its factorization.

686336349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024707.

The product of its digits is 1679616, while the sum is 48.

The square root of 686336349 is about 26198.0218528041. The cubic root of 686336349 is about 882.0888519144.

The spelling of 686336349 in words is "six hundred eighty-six million, three hundred thirty-six thousand, three hundred forty-nine".