686353339 has 24 divisors (see below), whose sum is σ = 820274688. Its totient is φ = 572382720.

The previous prime is 686353337. The next prime is 686353351. The reversal of 686353339 is 933353686.

It is not a de Polignac number, because 686353339 - 2¹ = 686353337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686353331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328779 + ... + 330859.

It is an arithmetic number, because the mean of its divisors is an integer number (34178112).

Almost surely, 2^686353339 is an apocalyptic number.

686353339 is a deficient number, since it is larger than the sum of its proper divisors (133921349).

686353339 is a wasteful number, since it uses less digits than its factorization.

686353339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2268 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 46.

The square root of 686353339 is about 26198.3461119209. The cubic root of 686353339 is about 882.0961304477.

It can be divided in two parts, 686 and 353339, that added together give a square (354025 = 595²).

The spelling of 686353339 in words is "six hundred eighty-six million, three hundred fifty-three thousand, three hundred thirty-nine".