684094 has 4 divisors (see below), whose sum is σ = 1026144. Its totient is φ = 342046.

The previous prime is 684091. The next prime is 684109. The reversal of 684094 is 490486.

684094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171022 + ... + 171025.

It is an arithmetic number, because the mean of its divisors is an integer number (256536).

2⁶⁸⁴⁰⁹⁴ is an apocalyptic number.

684094 is a deficient number, since it is larger than the sum of its proper divisors (342050).

684094 is a wasteful number, since it uses less digits than its factorization.

684094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342049.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 684094 is about 827.0997521460. The cubic root of 684094 is about 88.1127171319.

It can be divided in two parts, 6 and 84094, that added together give a square (84100 = 290²).

The spelling of 684094 in words is "six hundred eighty-four thousand, ninety-four".