1685479017 has 8 divisors (see below), whose sum is σ = 2247527296. Its totient is φ = 1123541712.

The previous prime is 1685478997. The next prime is 1685479027. The reversal of 1685479017 is 7109745861.

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

It is not a de Polignac number, because 1685479017 - 2⁶ = 1685478953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1685479027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18903 + ... + 61059.

It is an arithmetic number, because the mean of its divisors is an integer number (280940912).

Almost surely, 2^1685479017 is an apocalyptic number.

It is an amenable number.

1685479017 is a deficient number, since it is larger than the sum of its proper divisors (562048279).

1685479017 is a wasteful number, since it uses less digits than its factorization.

1685479017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55487.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 1685479017 is about 41054.5858218056. The cubic root of 1685479017 is about 1190.0753234811.

The spelling of 1685479017 in words is "one billion, six hundred eighty-five million, four hundred seventy-nine thousand, seventeen".