891067 has 2 divisors, whose sum is σ = 891068. Its totient is φ = 891066.

The previous prime is 891061. The next prime is 891091. The reversal of 891067 is 760198.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-891067 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891067.

It is not a weakly prime, because it can be changed into another prime (891061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445533 + 445534.

It is an arithmetic number, because the mean of its divisors is an integer number (445534).

2⁸⁹¹⁰⁶⁷ is an apocalyptic number.

891067 is a deficient number, since it is larger than the sum of its proper divisors (1).

891067 is an equidigital number, since it uses as much as digits as its factorization.

891067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 891067 is about 943.9634526824. The cubic root of 891067 is about 96.2284417900.

It can be divided in two parts, 89 and 1067, that added together give a square (1156 = 34²).

The spelling of 891067 in words is "eight hundred ninety-one thousand, sixty-seven".