686044326 has 16 divisors (see below), whose sum is σ = 1496824128. Its totient is φ = 207892200.

The previous prime is 686044321. The next prime is 686044327. The reversal of 686044326 is 623440686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686044321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5197240 + ... + 5197371.

It is an arithmetic number, because the mean of its divisors is an integer number (93551508).

Almost surely, 2^686044326 is an apocalyptic number.

686044326 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

686044326 is an abundant number, since it is smaller than the sum of its proper divisors (810779802).

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

686044326 is a wasteful number, since it uses less digits than its factorization.

686044326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394627.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 686044326 is about 26192.4478810210. The cubic root of 686044326 is about 881.9637301841.

The spelling of 686044326 in words is "six hundred eighty-six million, forty-four thousand, three hundred twenty-six".