684913384 has 16 divisors (see below), whose sum is σ = 1298643300. Its totient is φ = 338608512.

The previous prime is 684913319. The next prime is 684913399. The reversal of 684913384 is 483319486.

684913384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 586705284 + 98208100 = 24222^2 + 9910^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480267 + ... + 481690.

Almost surely, 2^684913384 is an apocalyptic number.

It is an amenable number.

684913384 is a deficient number, since it is larger than the sum of its proper divisors (613729916).

684913384 is a wasteful number, since it uses less digits than its factorization.

684913384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962052 (or 962048 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 684913384 is about 26170.8498906703. The cubic root of 684913384 is about 881.4788254497.

The spelling of 684913384 in words is "six hundred eighty-four million, nine hundred thirteen thousand, three hundred eighty-four".