491167 has 2 divisors, whose sum is σ = 491168. Its totient is φ = 491166.

The previous prime is 491159. The next prime is 491171. The reversal of 491167 is 761194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491167 - 2³ = 491159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245583 + 245584.

It is an arithmetic number, because the mean of its divisors is an integer number (245584).

2⁴⁹¹¹⁶⁷ is an apocalyptic number.

491167 is a deficient number, since it is larger than the sum of its proper divisors (1).

491167 is an equidigital number, since it uses as much as digits as its factorization.

491167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

The square root of 491167 is about 700.8330757035. The cubic root of 491167 is about 78.8998892138.

The spelling of 491167 in words is "four hundred ninety-one thousand, one hundred sixty-seven".