684002 has 8 divisors (see below), whose sum is σ = 1119312. Its totient is φ = 310900.

The previous prime is 683983. The next prime is 684007. The reversal of 684002 is 200486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (684007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15524 + ... + 15567.

It is an arithmetic number, because the mean of its divisors is an integer number (139914).

2⁶⁸⁴⁰⁰² is an apocalyptic number.

684002 is a deficient number, since it is larger than the sum of its proper divisors (435310).

684002 is a wasteful number, since it uses less digits than its factorization.

684002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31104.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 684002 is about 827.0441342516. The cubic root of 684002 is about 88.1087670249.

Adding to 684002 its reverse (200486), we get a palindrome (884488).

The spelling of 684002 in words is "six hundred eighty-four thousand, two".