985172793 has 32 divisors (see below), whose sum is σ = 1450842624. Its totient is φ = 589680000.

The previous prime is 985172663. The next prime is 985172803. The reversal of 985172793 is 397271589.

It is not a de Polignac number, because 985172793 - 2¹⁰ = 985171769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (985172093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214358 + ... + 1215168.

It is an arithmetic number, because the mean of its divisors is an integer number (45338832).

Almost surely, 2^985172793 is an apocalyptic number.

It is an amenable number.

985172793 is a deficient number, since it is larger than the sum of its proper divisors (465669831).

985172793 is a wasteful number, since it uses less digits than its factorization.

985172793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237.

The product of its digits is 952560, while the sum is 51.

The square root of 985172793 is about 31387.4623536214. The cubic root of 985172793 is about 995.0329670987.

The spelling of 985172793 in words is "nine hundred eighty-five million, one hundred seventy-two thousand, seven hundred ninety-three".