685479 has 8 divisors (see below), whose sum is σ = 936432. Its totient is φ = 445760.

The previous prime is 685471. The next prime is 685493. The reversal of 685479 is 974586.

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

It is a cyclic number.

It is not a de Polignac number, because 685479 - 2³ = 685471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (117054).

2⁶⁸⁵⁴⁷⁹ is an apocalyptic number.

685479 is a deficient number, since it is larger than the sum of its proper divisors (250953).

685479 is a wasteful number, since it uses less digits than its factorization.

685479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617.

The product of its digits is 60480, while the sum is 39.

The square root of 685479 is about 827.9365917750. The cubic root of 685479 is about 88.1721406656.

The spelling of 685479 in words is "six hundred eighty-five thousand, four hundred seventy-nine".