684358848 has 56 divisors (see below), whose sum is σ = 2011893360. Its totient is φ = 228119040.

The previous prime is 684358823. The next prime is 684358861. The reversal of 684358848 is 848853486.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 684358794 and 684358803.

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 7 ways as a sum of consecutive naturals, for example, 196293 + ... + 199748.

Almost surely, 2^684358848 is an apocalyptic number.

It is an amenable number.

684358848 is an abundant number, since it is smaller than the sum of its proper divisors (1327534512).

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

684358848 is a wasteful number, since it uses less digits than its factorization.

684358848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396062 (or 396046 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 54.

The square root of 684358848 is about 26160.2532097837. The cubic root of 684358848 is about 881.2408665418.

The spelling of 684358848 in words is "six hundred eighty-four million, three hundred fifty-eight thousand, eight hundred forty-eight".