9891103 has 8 divisors (see below), whose sum is σ = 10146240. Its totient is φ = 9637920.

The previous prime is 9891097. The next prime is 9891121. The reversal of 9891103 is 3011989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9891103 - 2⁹ = 9890591 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 (9895103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18013 + ... + 18553.

It is an arithmetic number, because the mean of its divisors is an integer number (1268280).

Almost surely, 2^9891103 is an apocalyptic number.

9891103 is a deficient number, since it is larger than the sum of its proper divisors (255137).

9891103 is a wasteful number, since it uses less digits than its factorization.

9891103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 9891103 is about 3145.0124006115. The cubic root of 9891103 is about 214.6585747349.

The spelling of 9891103 in words is "nine million, eight hundred ninety-one thousand, one hundred three".