9850091 has 4 divisors (see below), whose sum is σ = 9858000. Its totient is φ = 9842184.

The previous prime is 9850081. The next prime is 9850129. The reversal of 9850091 is 1900589.

9850091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9850091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9850081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (2464500).

Almost surely, 2^9850091 is an apocalyptic number.

9850091 is a deficient number, since it is larger than the sum of its proper divisors (7909).

9850091 is a wasteful number, since it uses less digits than its factorization.

9850091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 9850091 is about 3138.4854627670. The cubic root of 9850091 is about 214.3614803613.

The spelling of 9850091 in words is "nine million, eight hundred fifty thousand, ninety-one".