9103993 has 4 divisors (see below), whose sum is σ = 9639540. Its totient is φ = 8568448.

The previous prime is 9103981. The next prime is 9104033. The reversal of 9103993 is 3993019.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2913849 + 6190144 = 1707^2 + 2488^2 .

It is a cyclic number.

It is not a de Polignac number, because 9103993 - 2⁹ = 9103481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9103943) 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, 267748 + ... + 267781.

It is an arithmetic number, because the mean of its divisors is an integer number (2409885).

Almost surely, 2^9103993 is an apocalyptic number.

It is an amenable number.

9103993 is a deficient number, since it is larger than the sum of its proper divisors (535547).

9103993 is a wasteful number, since it uses less digits than its factorization.

9103993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535546.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 9103993 is about 3017.2823865194. The cubic root of 9103993 is about 208.8064797512.

The spelling of 9103993 in words is "nine million, one hundred three thousand, nine hundred ninety-three".