684364 has 6 divisors (see below), whose sum is σ = 1197644. Its totient is φ = 342180.

The previous prime is 684349. The next prime is 684373. The reversal of 684364 is 463486.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85542 + ... + 85549.

2⁶⁸⁴³⁶⁴ is an apocalyptic number.

It is an amenable number.

684364 is a deficient number, since it is larger than the sum of its proper divisors (513280).

684364 is a wasteful number, since it uses less digits than its factorization.

684364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171095 (or 171093 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 684364 is about 827.2629569853. The cubic root of 684364 is about 88.1243077926.

The spelling of 684364 in words is "six hundred eighty-four thousand, three hundred sixty-four".