685070 has 8 divisors (see below), whose sum is σ = 1233144. Its totient is φ = 274024.

The previous prime is 685063. The next prime is 685073. The reversal of 685070 is 70586.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685073) 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, 34244 + ... + 34263.

It is an arithmetic number, because the mean of its divisors is an integer number (154143).

2⁶⁸⁵⁰⁷⁰ is an apocalyptic number.

685070 is a deficient number, since it is larger than the sum of its proper divisors (548074).

685070 is a wasteful number, since it uses less digits than its factorization.

685070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68514.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 685070 is about 827.6895553286. The cubic root of 685070 is about 88.1546008235.

The spelling of 685070 in words is "six hundred eighty-five thousand, seventy".