891367 has 4 divisors (see below), whose sum is σ = 915496. Its totient is φ = 867240.

The previous prime is 891349. The next prime is 891377. The reversal of 891367 is 763198.

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

It is a cyclic number.

It is not a de Polignac number, because 891367 - 2⁷ = 891239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891367.

It is not an unprimeable number, because it can be changed into a prime (891377) 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, 12009 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (228874).

2⁸⁹¹³⁶⁷ is an apocalyptic number.

891367 is a deficient number, since it is larger than the sum of its proper divisors (24129).

891367 is a wasteful number, since it uses less digits than its factorization.

891367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128.

The product of its digits is 9072, while the sum is 34.

The square root of 891367 is about 944.1223437670. The cubic root of 891367 is about 96.2392398158.

The spelling of 891367 in words is "eight hundred ninety-one thousand, three hundred sixty-seven".