493384139 has 2 divisors, whose sum is σ = 493384140. Its totient is φ = 493384138.

The previous prime is 493384093. The next prime is 493384187. The reversal of 493384139 is 931483394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493384139 - 2²⁰ = 492335563 is a prime.

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 493384139.

It is not a weakly prime, because it can be changed into another prime (493384739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246692069 + 246692070.

It is an arithmetic number, because the mean of its divisors is an integer number (246692070).

Almost surely, 2^493384139 is an apocalyptic number.

493384139 is a deficient number, since it is larger than the sum of its proper divisors (1).

493384139 is an equidigital number, since it uses as much as digits as its factorization.

493384139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 493384139 is about 22212.2520019921. The cubic root of 493384139 is about 790.1842965850.

The spelling of 493384139 in words is "four hundred ninety-three million, three hundred eighty-four thousand, one hundred thirty-nine".