684048508 has 48 divisors (see below), whose sum is σ = 1408942080. Its totient is φ = 286488000.

The previous prime is 684048467. The next prime is 684048509. The reversal of 684048508 is 805840486.

It is a super-2 number, since 2×684048508² = 935844722594052128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684048509) 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 15 ways as a sum of consecutive naturals, for example, 593733 + ... + 594883.

It is an arithmetic number, because the mean of its divisors is an integer number (29352960).

Almost surely, 2^684048508 is an apocalyptic number.

It is an amenable number.

684048508 is an abundant number, since it is smaller than the sum of its proper divisors (724893572).

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

684048508 is a wasteful number, since it uses less digits than its factorization.

684048508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 684048508 is about 26154.3210196709. The cubic root of 684048508 is about 881.1076393413.

The spelling of 684048508 in words is "six hundred eighty-four million, forty-eight thousand, five hundred eight".