407685 has 8 divisors (see below), whose sum is σ = 652320. Its totient is φ = 217424.

The previous prime is 407669. The next prime is 407699. The reversal of 407685 is 586704.

It is a happy number.

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 407685 - 2⁴ = 407669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13575 + ... + 13604.

It is an arithmetic number, because the mean of its divisors is an integer number (81540).

2⁴⁰⁷⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

407685 is a deficient number, since it is larger than the sum of its proper divisors (244635).

407685 is a wasteful number, since it uses less digits than its factorization.

407685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27187.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 407685 is about 638.5021534811. The cubic root of 407685 is about 74.1495029648.

The spelling of 407685 in words is "four hundred seven thousand, six hundred eighty-five".