407006685 has 24 divisors (see below), whose sum is σ = 713984544. Its totient is φ = 214452960.

The previous prime is 407006683. The next prime is 407006729. The reversal of 407006685 is 586600704.

It is a happy number.

It is not a de Polignac number, because 407006685 - 2¹ = 407006683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407006683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50751 + ... + 58220.

It is an arithmetic number, because the mean of its divisors is an integer number (29749356).

Almost surely, 2^407006685 is an apocalyptic number.

407006685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

407006685 is a deficient number, since it is larger than the sum of its proper divisors (306977859).

407006685 is a wasteful number, since it uses less digits than its factorization.

407006685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109065 (or 109062 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 407006685 is about 20174.4066827255. The cubic root of 407006685 is about 741.0835629453.

The spelling of 407006685 in words is "four hundred seven million, six thousand, six hundred eighty-five".