91267 has 4 divisors (see below), whose sum is σ = 99576. Its totient is φ = 82960.

The previous prime is 91253. The next prime is 91283. The reversal of 91267 is 76219.

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 91267 - 2⁷ = 91139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4138 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (24894).

2⁹¹²⁶⁷ is an apocalyptic number.

91267 is a deficient number, since it is larger than the sum of its proper divisors (8309).

91267 is a wasteful number, since it uses less digits than its factorization.

91267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308.

The product of its digits is 756, while the sum is 25.

The square root of 91267 is about 302.1042866296. The cubic root of 91267 is about 45.0233623546.

It can be divided in two parts, 912 and 67, that added together give a palindrome (979).

The spelling of 91267 in words is "ninety-one thousand, two hundred sixty-seven".