891116 has 6 divisors (see below), whose sum is σ = 1559460. Its totient is φ = 445556.

The previous prime is 891103. The next prime is 891133. The reversal of 891116 is 611198.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111386 + ... + 111393.

It is an arithmetic number, because the mean of its divisors is an integer number (259910).

2⁸⁹¹¹¹⁶ is an apocalyptic number.

It is an amenable number.

891116 is a deficient number, since it is larger than the sum of its proper divisors (668344).

891116 is a wasteful number, since it uses less digits than its factorization.

891116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222783 (or 222781 counting only the distinct ones).

The product of its digits is 432, while the sum is 26.

The square root of 891116 is about 943.9894067202. The cubic root of 891116 is about 96.2302056332.

The spelling of 891116 in words is "eight hundred ninety-one thousand, one hundred sixteen".