494393279 has 4 divisors (see below), whose sum is σ = 495983280. Its totient is φ = 492803280.

The previous prime is 494393261. The next prime is 494393287. The reversal of 494393279 is 972393494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494393279 - 2⁸ = 494393023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494393209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794534 + ... + 795155.

It is an arithmetic number, because the mean of its divisors is an integer number (123995820).

Almost surely, 2^494393279 is an apocalyptic number.

494393279 is a deficient number, since it is larger than the sum of its proper divisors (1590001).

494393279 is a wasteful number, since it uses less digits than its factorization.

494393279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590000.

The product of its digits is 1469664, while the sum is 50.

The square root of 494393279 is about 22234.9562401188. The cubic root of 494393279 is about 790.7226624533.

The spelling of 494393279 in words is "four hundred ninety-four million, three hundred ninety-three thousand, two hundred seventy-nine".