491247 has 6 divisors (see below), whose sum is σ = 709592. Its totient is φ = 327492.

The previous prime is 491219. The next prime is 491251. The reversal of 491247 is 742194.

It is a happy number.

It is not a de Polignac number, because 491247 - 2⁸ = 490991 is a prime.

It is a Duffinian number.

491247 is a lucky number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 491247.

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 491247.

It is not an unprimeable number, because it can be changed into a prime (491297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27283 + ... + 27300.

2⁴⁹¹²⁴⁷ is an apocalyptic number.

491247 is a deficient number, since it is larger than the sum of its proper divisors (218345).

491247 is a wasteful number, since it uses less digits than its factorization.

491247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54589 (or 54586 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 491247 is about 700.8901483114. The cubic root of 491247 is about 78.9041726506.

It can be divided in two parts, 49 and 1247, that added together give a 4-th power (1296 = 6⁴).

The spelling of 491247 in words is "four hundred ninety-one thousand, two hundred forty-seven".