491267 has 4 divisors (see below), whose sum is σ = 561456. Its totient is φ = 421080.

The previous prime is 491261. The next prime is 491273. The reversal of 491267 is 762194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 762194 = 2 ⋅381097.

It is an interprime number because it is at equal distance from previous prime (491261) and next prime (491273).

It is a cyclic number.

It is not a de Polignac number, because 491267 - 2⁴ = 491251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35084 + ... + 35097.

It is an arithmetic number, because the mean of its divisors is an integer number (140364).

2⁴⁹¹²⁶⁷ is an apocalyptic number.

491267 is a deficient number, since it is larger than the sum of its proper divisors (70189).

491267 is an equidigital number, since it uses as much as digits as its factorization.

491267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70188.

The product of its digits is 3024, while the sum is 29.

The square root of 491267 is about 700.9044157373. The cubic root of 491267 is about 78.9052434371.

The spelling of 491267 in words is "four hundred ninety-one thousand, two hundred sixty-seven".