685214 has 4 divisors (see below), whose sum is σ = 1027824. Its totient is φ = 342606.

The previous prime is 685199. The next prime is 685231. The reversal of 685214 is 412586.

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

It is a congruent number.

It is an unprimeable number.

685214 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171302 + ... + 171305.

It is an arithmetic number, because the mean of its divisors is an integer number (256956).

2⁶⁸⁵²¹⁴ is an apocalyptic number.

685214 is a deficient number, since it is larger than the sum of its proper divisors (342610).

685214 is a wasteful number, since it uses less digits than its factorization.

685214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342609.

The product of its digits is 1920, while the sum is 26.

The square root of 685214 is about 827.7765398947. The cubic root of 685214 is about 88.1607770163.

The spelling of 685214 in words is "six hundred eighty-five thousand, two hundred fourteen".