494958389 has 2 divisors, whose sum is σ = 494958390. Its totient is φ = 494958388.

The previous prime is 494958319. The next prime is 494958407. The reversal of 494958389 is 983859494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315666289 + 179292100 = 17767^2 + 13390^2 .

It is a cyclic number.

It is not a de Polignac number, because 494958389 - 2²⁰ = 493909813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494958319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247479194 + 247479195.

It is an arithmetic number, because the mean of its divisors is an integer number (247479195).

Almost surely, 2^494958389 is an apocalyptic number.

It is an amenable number.

494958389 is a deficient number, since it is larger than the sum of its proper divisors (1).

494958389 is an equidigital number, since it uses as much as digits as its factorization.

494958389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 59.

The square root of 494958389 is about 22247.6603039511. The cubic root of 494958389 is about 791.0238229243.

The spelling of 494958389 in words is "four hundred ninety-four million, nine hundred fifty-eight thousand, three hundred eighty-nine".