686465364 has 144 divisors (see below), whose sum is σ = 1883999040. Its totient is φ = 192844800.

The previous prime is 686465363. The next prime is 686465393. The reversal of 686465364 is 463564686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686465363) 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 47 ways as a sum of consecutive naturals, for example, 2848284 + ... + 2848524.

Almost surely, 2^686465364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686465364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941999520).

686465364 is an abundant number, since it is smaller than the sum of its proper divisors (1197533676).

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

686465364 is a wasteful number, since it uses less digits than its factorization.

686465364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 309 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The square root of 686465364 is about 26200.4840413302. The cubic root of 686465364 is about 882.1441190651.

The spelling of 686465364 in words is "six hundred eighty-six million, four hundred sixty-five thousand, three hundred sixty-four".