684596896 has 12 divisors (see below), whose sum is σ = 1347800202. Its totient is φ = 342298432.

The previous prime is 684596873. The next prime is 684596897. The reversal of 684596896 is 698695486.

It can be written as a sum of positive squares in only one way, i.e., 527345296 + 157251600 = 22964^2 + 12540^2 .

It is not an unprimeable number, because it can be changed into a prime (684596897) by changing a digit.

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 as a sum of consecutive naturals, namely, 10696795 + ... + 10696858.

Almost surely, 2^684596896 is an apocalyptic number.

It is an amenable number.

684596896 is a deficient number, since it is larger than the sum of its proper divisors (663203306).

684596896 is a wasteful number, since it uses less digits than its factorization.

684596896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21393663 (or 21393655 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 61.

The square root of 684596896 is about 26164.8026172566. The cubic root of 684596896 is about 881.3430319034.

The spelling of 684596896 in words is "six hundred eighty-four million, five hundred ninety-six thousand, eight hundred ninety-six".