891104 has 12 divisors (see below), whose sum is σ = 1754424. Its totient is φ = 445536.

The previous prime is 891103. The next prime is 891133. The reversal of 891104 is 401198.

It is a self number, because there is not a number n which added to its sum of digits gives 891104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13892 + ... + 13955.

It is an arithmetic number, because the mean of its divisors is an integer number (146202).

2⁸⁹¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

891104 is a deficient number, since it is larger than the sum of its proper divisors (863320).

891104 is a wasteful number, since it uses less digits than its factorization.

891104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27857 (or 27849 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 891104 is about 943.9830506953. The cubic root of 891104 is about 96.2297736776.

The spelling of 891104 in words is "eight hundred ninety-one thousand, one hundred four".