494774279 has 2 divisors, whose sum is σ = 494774280. Its totient is φ = 494774278.

The previous prime is 494774263. The next prime is 494774281. The reversal of 494774279 is 972477494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 494774279 - 2⁴ = 494774263 is a prime.

Together with 494774281, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494774279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494774479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247387139 + 247387140.

It is an arithmetic number, because the mean of its divisors is an integer number (247387140).

Almost surely, 2^494774279 is an apocalyptic number.

494774279 is a deficient number, since it is larger than the sum of its proper divisors (1).

494774279 is an equidigital number, since it uses as much as digits as its factorization.

494774279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 53.

The square root of 494774279 is about 22243.5221806260. The cubic root of 494774279 is about 790.9257315423.

The spelling of 494774279 in words is "four hundred ninety-four million, seven hundred seventy-four thousand, two hundred seventy-nine".