684082098 has 80 divisors (see below), whose sum is σ = 1792697280. Its totient is φ = 190893024.

The previous prime is 684082081. The next prime is 684082117. The reversal of 684082098 is 890280486.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 41748 + ... + 55776.

It is an arithmetic number, because the mean of its divisors is an integer number (22408716).

Almost surely, 2^684082098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 684082098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896348640).

684082098 is an abundant number, since it is smaller than the sum of its proper divisors (1108615182).

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

684082098 is a wasteful number, since it uses less digits than its factorization.

684082098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14093 (or 14084 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 684082098 is about 26154.9631618934. The cubic root of 684082098 is about 881.1220612821.

The spelling of 684082098 in words is "six hundred eighty-four million, eighty-two thousand, ninety-eight".