985338817 has 4 divisors (see below), whose sum is σ = 986455600. Its totient is φ = 984222036.

The previous prime is 985338793. The next prime is 985338833. The reversal of 985338817 is 718833589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 985338817 - 2¹¹ = 985336769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985338857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557067 + ... + 558832.

It is an arithmetic number, because the mean of its divisors is an integer number (246613900).

Almost surely, 2^985338817 is an apocalyptic number.

It is an amenable number.

985338817 is a deficient number, since it is larger than the sum of its proper divisors (1116783).

985338817 is a wasteful number, since it uses less digits than its factorization.

985338817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116782.

The product of its digits is 1451520, while the sum is 52.

The square root of 985338817 is about 31390.1069924905. The cubic root of 985338817 is about 995.0888591803.

The spelling of 985338817 in words is "nine hundred eighty-five million, three hundred thirty-eight thousand, eight hundred seventeen".