685374 has 8 divisors (see below), whose sum is σ = 1370760. Its totient is φ = 228456.

The previous prime is 685369. The next prime is 685381. The reversal of 685374 is 473586.

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

685374 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57109 + ... + 57120.

It is an arithmetic number, because the mean of its divisors is an integer number (171345).

2⁶⁸⁵³⁷⁴ is an apocalyptic number.

685374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

685374 is a wasteful number, since it uses less digits than its factorization.

685374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114234.

The product of its digits is 20160, while the sum is 33.

The square root of 685374 is about 827.8731786935. The cubic root of 685374 is about 88.1676384379.

The spelling of 685374 in words is "six hundred eighty-five thousand, three hundred seventy-four".