494382643 has 2 divisors, whose sum is σ = 494382644. Its totient is φ = 494382642.

The previous prime is 494382601. The next prime is 494382667. The reversal of 494382643 is 346283494.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494382643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494382643.

It is not a weakly prime, because it can be changed into another prime (494382673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247191321 + 247191322.

It is an arithmetic number, because the mean of its divisors is an integer number (247191322).

Almost surely, 2^494382643 is an apocalyptic number.

494382643 is a deficient number, since it is larger than the sum of its proper divisors (1).

494382643 is an equidigital number, since it uses as much as digits as its factorization.

494382643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 43.

The square root of 494382643 is about 22234.7170658860. The cubic root of 494382643 is about 790.7169920779.

The spelling of 494382643 in words is "four hundred ninety-four million, three hundred eighty-two thousand, six hundred forty-three".