494591 has 2 divisors, whose sum is σ = 494592. Its totient is φ = 494590.

The previous prime is 494587. The next prime is 494609. The reversal of 494591 is 195494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494591 - 2² = 494587 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247295 + 247296.

It is an arithmetic number, because the mean of its divisors is an integer number (247296).

2⁴⁹⁴⁵⁹¹ is an apocalyptic number.

494591 is a deficient number, since it is larger than the sum of its proper divisors (1).

494591 is an equidigital number, since it uses as much as digits as its factorization.

494591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 494591 is about 703.2716402643. The cubic root of 494591 is about 79.0828058734.

The spelling of 494591 in words is "four hundred ninety-four thousand, five hundred ninety-one".