985832091 has 24 divisors (see below), whose sum is σ = 1509075360. Its totient is φ = 618014976.

The previous prime is 985832083. The next prime is 985832131. The reversal of 985832091 is 190238589.

It is a happy number.

It is not a de Polignac number, because 985832091 - 2³ = 985832083 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (985832021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236461 + ... + 240593.

It is an arithmetic number, because the mean of its divisors is an integer number (62878140).

Almost surely, 2^985832091 is an apocalyptic number.

985832091 is a deficient number, since it is larger than the sum of its proper divisors (523243269).

985832091 is a wasteful number, since it uses less digits than its factorization.

985832091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715 (or 5712 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 985832091 is about 31397.9631664221. The cubic root of 985832091 is about 995.2548831466.

The spelling of 985832091 in words is "nine hundred eighty-five million, eight hundred thirty-two thousand, ninety-one".