9104991 has 8 divisors (see below), whose sum is σ = 13874304. Its totient is φ = 5202840.

The previous prime is 9104989. The next prime is 9105001. The reversal of 9104991 is 1994019.

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

It is not a de Polignac number, because 9104991 - 2¹ = 9104989 is a prime.

It is a super-2 number, since 2×9104991² = 165801722220162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9104791) 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, 216765 + ... + 216806.

It is an arithmetic number, because the mean of its divisors is an integer number (1734288).

Almost surely, 2^9104991 is an apocalyptic number.

9104991 is a deficient number, since it is larger than the sum of its proper divisors (4769313).

9104991 is a wasteful number, since it uses less digits than its factorization.

9104991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433581.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 9104991 is about 3017.4477625967. The cubic root of 9104991 is about 208.8141094163.

The spelling of 9104991 in words is "nine million, one hundred four thousand, nine hundred ninety-one".