684062912 has 28 divisors (see below), whose sum is σ = 1461857376. Its totient is φ = 315720960.

The previous prime is 684062887. The next prime is 684062921. The reversal of 684062912 is 219260486.

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 3 ways as a sum of consecutive naturals, for example, 410264 + ... + 411927.

It is an arithmetic number, because the mean of its divisors is an integer number (52209192).

Almost surely, 2^684062912 is an apocalyptic number.

It is an amenable number.

684062912 is an abundant number, since it is smaller than the sum of its proper divisors (777794464).

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

684062912 is a wasteful number, since it uses less digits than its factorization.

684062912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822216 (or 822206 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 684062912 is about 26154.5963838099. The cubic root of 684062912 is about 881.1138237884.

The spelling of 684062912 in words is "six hundred eighty-four million, sixty-two thousand, nine hundred twelve".