686344362 has 64 divisors (see below), whose sum is σ = 1530316800. Its totient is φ = 203470400.

The previous prime is 686344361. The next prime is 686344369. The reversal of 686344362 is 263443686.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (686344361) 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 31 ways as a sum of consecutive naturals, for example, 697723 + ... + 698705.

It is an arithmetic number, because the mean of its divisors is an integer number (23911200).

Almost surely, 2^686344362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686344362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765158400).

686344362 is an abundant number, since it is smaller than the sum of its proper divisors (843972438).

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

686344362 is a wasteful number, since it uses less digits than its factorization.

686344362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its digits is 497664, while the sum is 42.

The square root of 686344362 is about 26198.1747837516. The cubic root of 686344362 is about 882.0922847068.

It can be divided in two parts, 6 and 86344362, that added together give a palindrome (86344368).

The spelling of 686344362 in words is "six hundred eighty-six million, three hundred forty-four thousand, three hundred sixty-two".