491107 has 4 divisors (see below), whose sum is σ = 498096. Its totient is φ = 484120.

The previous prime is 491083. The next prime is 491129. The reversal of 491107 is 701194.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491137) 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, 3388 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (124524).

2⁴⁹¹¹⁰⁷ is an apocalyptic number.

491107 is a deficient number, since it is larger than the sum of its proper divisors (6989).

491107 is an equidigital number, since it uses as much as digits as its factorization.

491107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 491107 is about 700.7902681973. The cubic root of 491107 is about 78.8966763309.

It can be divided in two parts, 49 and 1107, that added together give a square (1156 = 34²).

The spelling of 491107 in words is "four hundred ninety-one thousand, one hundred seven".