494647 has 2 divisors, whose sum is σ = 494648. Its totient is φ = 494646.

The previous prime is 494639. The next prime is 494651. The reversal of 494647 is 746494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 494647 - 2³ = 494639 is a prime.

494647 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247323 + 247324.

It is an arithmetic number, because the mean of its divisors is an integer number (247324).

2⁴⁹⁴⁶⁴⁷ is an apocalyptic number.

494647 is a deficient number, since it is larger than the sum of its proper divisors (1).

494647 is an equidigital number, since it uses as much as digits as its factorization.

494647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 494647 is about 703.3114530562. The cubic root of 494647 is about 79.0857904741.

The spelling of 494647 in words is "four hundred ninety-four thousand, six hundred forty-seven".