682761684 has 144 divisors (see below), whose sum is σ = 1896568128. Its totient is φ = 188928000.

The previous prime is 682761679. The next prime is 682761727. The reversal of 682761684 is 486167286.

682761684 = 2036² + 2037² + ... + 2188².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3772074 + ... + 3772254.

It is an arithmetic number, because the mean of its divisors is an integer number (13170612).

Almost surely, 2^682761684 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 682761684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948284064).

682761684 is an abundant number, since it is smaller than the sum of its proper divisors (1213806444).

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

682761684 is a wasteful number, since it uses less digits than its factorization.

682761684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 255 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 682761684 is about 26129.7088387911. The cubic root of 682761684 is about 880.5547827478.

The spelling of 682761684 in words is "six hundred eighty-two million, seven hundred sixty-one thousand, six hundred eighty-four".