494778329 has 2 divisors, whose sum is σ = 494778330. Its totient is φ = 494778328.

The previous prime is 494778301. The next prime is 494778341. The reversal of 494778329 is 923877494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427538329 + 67240000 = 20677^2 + 8200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494778329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (494778029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247389164 + 247389165.

It is an arithmetic number, because the mean of its divisors is an integer number (247389165).

Almost surely, 2^494778329 is an apocalyptic number.

It is an amenable number.

494778329 is a deficient number, since it is larger than the sum of its proper divisors (1).

494778329 is an equidigital number, since it uses as much as digits as its factorization.

494778329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 53.

The square root of 494778329 is about 22243.6132181802. The cubic root of 494778329 is about 790.9278895907.

The spelling of 494778329 in words is "four hundred ninety-four million, seven hundred seventy-eight thousand, three hundred twenty-nine".