494069689 has 2 divisors, whose sum is σ = 494069690. Its totient is φ = 494069688.

The previous prime is 494069677. The next prime is 494069731. The reversal of 494069689 is 986960494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260499600 + 233570089 = 16140^2 + 15283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494069689 is a prime.

It is not a weakly prime, because it can be changed into another prime (494069629) 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, 247034844 + 247034845.

It is an arithmetic number, because the mean of its divisors is an integer number (247034845).

Almost surely, 2^494069689 is an apocalyptic number.

It is an amenable number.

494069689 is a deficient number, since it is larger than the sum of its proper divisors (1).

494069689 is an equidigital number, since it uses as much as digits as its factorization.

494069689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 494069689 is about 22227.6784437782. The cubic root of 494069689 is about 790.5501103567.

It can be divided in two parts, 49406 and 9689, that added together give a palindrome (59095).

The spelling of 494069689 in words is "four hundred ninety-four million, sixty-nine thousand, six hundred eighty-nine".