985936217 has 8 divisors (see below), whose sum is σ = 1127334912. Its totient is φ = 844675200.

The previous prime is 985936181. The next prime is 985936219. The reversal of 985936217 is 712639589.

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 985936217 - 2⁶ = 985936153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985936219) 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, 18584 + ... + 48137.

It is an arithmetic number, because the mean of its divisors is an integer number (140916864).

Almost surely, 2^985936217 is an apocalyptic number.

It is an amenable number.

985936217 is a deficient number, since it is larger than the sum of its proper divisors (141398695).

985936217 is a wasteful number, since it uses less digits than its factorization.

985936217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68839.

The product of its digits is 816480, while the sum is 50.

The square root of 985936217 is about 31399.6212875251. The cubic root of 985936217 is about 995.2899223325.

The spelling of 985936217 in words is "nine hundred eighty-five million, nine hundred thirty-six thousand, two hundred seventeen".