684914684 has 12 divisors (see below), whose sum is σ = 1203746544. Its totient is φ = 340987104.

The previous prime is 684914647. The next prime is 684914693. The reversal of 684914684 is 486419486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366512 + ... + 368375.

It is an arithmetic number, because the mean of its divisors is an integer number (100312212).

Almost surely, 2^684914684 is an apocalyptic number.

It is an amenable number.

684914684 is a deficient number, since it is larger than the sum of its proper divisors (518831860).

684914684 is a wasteful number, since it uses less digits than its factorization.

684914684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735124 (or 735122 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The square root of 684914684 is about 26170.8747274523. The cubic root of 684914684 is about 881.4793831463.

The spelling of 684914684 in words is "six hundred eighty-four million, nine hundred fourteen thousand, six hundred eighty-four".