494237729 has 2 divisors, whose sum is σ = 494237730. Its totient is φ = 494237728.

The previous prime is 494237707. The next prime is 494237741. The reversal of 494237729 is 927732494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443186704 + 51051025 = 21052^2 + 7145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494237729 is a prime.

It is not a weakly prime, because it can be changed into another prime (494237789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247118864 + 247118865.

It is an arithmetic number, because the mean of its divisors is an integer number (247118865).

Almost surely, 2^494237729 is an apocalyptic number.

It is an amenable number.

494237729 is a deficient number, since it is larger than the sum of its proper divisors (1).

494237729 is an equidigital number, since it uses as much as digits as its factorization.

494237729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 494237729 is about 22231.4580943311. The cubic root of 494237729 is about 790.6397259080.

The spelling of 494237729 in words is "four hundred ninety-four million, two hundred thirty-seven thousand, seven hundred twenty-nine".