427685 has 8 divisors (see below), whose sum is σ = 535680. Its totient is φ = 327184.

The previous prime is 427681. The next prime is 427711. The reversal of 427685 is 586724.

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 427685 - 2² = 427681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427681) 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, 1745 + ... + 1974.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2⁴²⁷⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

427685 is a deficient number, since it is larger than the sum of its proper divisors (107995).

427685 is a wasteful number, since it uses less digits than its factorization.

427685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its digits is 13440, while the sum is 32.

The square root of 427685 is about 653.9762992647. The cubic root of 427685 is about 75.3427277466.

The spelling of 427685 in words is "four hundred twenty-seven thousand, six hundred eighty-five".