684370296 has 80 divisors (see below), whose sum is σ = 1921896240. Its totient is φ = 227525760.

The previous prime is 684370289. The next prime is 684370301. The reversal of 684370296 is 692073486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 294981 + ... + 297291.

It is an arithmetic number, because the mean of its divisors is an integer number (24023703).

Almost surely, 2^684370296 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 684370296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960948120).

684370296 is an abundant number, since it is smaller than the sum of its proper divisors (1237525944).

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

684370296 is a wasteful number, since it uses less digits than its factorization.

684370296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 684370296 is about 26160.4720140903. The cubic root of 684370296 is about 881.2457803329.

The spelling of 684370296 in words is "six hundred eighty-four million, three hundred seventy thousand, two hundred ninety-six".