684676464 has 40 divisors (see below), whose sum is σ = 1769751312. Its totient is φ = 228096000.

The previous prime is 684676463. The next prime is 684676471. The reversal of 684676464 is 464676486.

684676464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684676463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121714 + ... + 127214.

Almost surely, 2^684676464 is an apocalyptic number.

It is an amenable number.

684676464 is an abundant number, since it is smaller than the sum of its proper divisors (1085074848).

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

684676464 is a wasteful number, since it uses less digits than its factorization.

684676464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8105 (or 8099 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The square root of 684676464 is about 26166.3230890395. The cubic root of 684676464 is about 881.3771755900.

The spelling of 684676464 in words is "six hundred eighty-four million, six hundred seventy-six thousand, four hundred sixty-four".