684413808 has 40 divisors (see below), whose sum is σ = 1904076048. Its totient is φ = 210588672.

The previous prime is 684413797. The next prime is 684413813. The reversal of 684413808 is 808314486.

It is a self number, because there is not a number n which added to its sum of digits gives 684413808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547785 + ... + 549032.

Almost surely, 2^684413808 is an apocalyptic number.

It is an amenable number.

684413808 is an abundant number, since it is smaller than the sum of its proper divisors (1219662240).

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

684413808 is a wasteful number, since it uses less digits than its factorization.

684413808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096841 (or 1096835 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 684413808 is about 26161.3036372425. The cubic root of 684413808 is about 881.2644563596.

The spelling of 684413808 in words is "six hundred eighty-four million, four hundred thirteen thousand, eight hundred eight".