685286417 has 8 divisors (see below), whose sum is σ = 690792960. Its totient is φ = 679800240.

The previous prime is 685286411. The next prime is 685286419. The reversal of 685286417 is 714682586.

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 685286417 - 2⁴ = 685286401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685286411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66434 + ... + 76052.

It is an arithmetic number, because the mean of its divisors is an integer number (86349120).

Almost surely, 2^685286417 is an apocalyptic number.

It is an amenable number.

685286417 is a deficient number, since it is larger than the sum of its proper divisors (5506543).

685286417 is a wasteful number, since it uses less digits than its factorization.

685286417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10183.

The product of its digits is 645120, while the sum is 47.

The square root of 685286417 is about 26177.9758002791. The cubic root of 685286417 is about 881.6388267091.

The spelling of 685286417 in words is "six hundred eighty-five million, two hundred eighty-six thousand, four hundred seventeen".