684354672 has 60 divisors (see below), whose sum is σ = 1917780280. Its totient is φ = 227816064.

The previous prime is 684354661. The next prime is 684354743. The reversal of 684354672 is 276453486.

684354672 is a `hidden beast` number, since 68 + 43 + 546 + 7 + 2 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 123579 + ... + 128997.

Almost surely, 2^684354672 is an apocalyptic number.

It is an amenable number.

684354672 is an abundant number, since it is smaller than the sum of its proper divisors (1233425608).

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

684354672 is a wasteful number, since it uses less digits than its factorization.

684354672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310 (or 6301 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 684354672 is about 26160.1733939208. The cubic root of 684354672 is about 881.2390740761.

The spelling of 684354672 in words is "six hundred eighty-four million, three hundred fifty-four thousand, six hundred seventy-two".