9890173 has 4 divisors (see below), whose sum is σ = 9956700. Its totient is φ = 9823648.

The previous prime is 9890159. The next prime is 9890183. The reversal of 9890173 is 3710989.

9890173 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 an emirpimes, since its reverse is a distinct semiprime: 3710989 = 37 ⋅100297.

It can be written as a sum of positive squares in 2 ways, for example, as 5555449 + 4334724 = 2357^2 + 2082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9890173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890183) 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, 33040 + ... + 33337.

It is an arithmetic number, because the mean of its divisors is an integer number (2489175).

Almost surely, 2^9890173 is an apocalyptic number.

It is an amenable number.

9890173 is a deficient number, since it is larger than the sum of its proper divisors (66527).

9890173 is a wasteful number, since it uses less digits than its factorization.

9890173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66526.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9890173 is about 3144.8645439828. The cubic root of 9890173 is about 214.6518468459.

The spelling of 9890173 in words is "nine million, eight hundred ninety thousand, one hundred seventy-three".