684813096 has 128 divisors (see below), whose sum is σ = 2085782400. Its totient is φ = 206461440.

The previous prime is 684813079. The next prime is 684813121. The reversal of 684813096 is 690318486.

It is an unprimeable number.

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, 552990 + ... + 554226.

It is an arithmetic number, because the mean of its divisors is an integer number (16295175).

Almost surely, 2^684813096 is an apocalyptic number.

684813096 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 684813096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1042891200).

684813096 is an abundant number, since it is smaller than the sum of its proper divisors (1400969304).

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

684813096 is a wasteful number, since it uses less digits than its factorization.

684813096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 684813096 is about 26168.9337956287. The cubic root of 684813096 is about 881.4358000270.

The spelling of 684813096 in words is "six hundred eighty-four million, eight hundred thirteen thousand, ninety-six".