493839393 has 16 divisors (see below), whose sum is σ = 715468800. Its totient is φ = 301836240.

The previous prime is 493839389. The next prime is 493839419. The reversal of 493839393 is 393938394.

It is not a de Polignac number, because 493839393 - 2² = 493839389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493838393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137973 + ... + 141506.

It is an arithmetic number, because the mean of its divisors is an integer number (44716800).

Almost surely, 2^493839393 is an apocalyptic number.

It is an amenable number.

493839393 is a deficient number, since it is larger than the sum of its proper divisors (221629407).

493839393 is a wasteful number, since it uses less digits than its factorization.

493839393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279532.

The product of its digits is 1889568, while the sum is 51.

The square root of 493839393 is about 22222.4974519067. The cubic root of 493839393 is about 790.4272607351.

Subtracting from 493839393 its reverse (393938394), we obtain a palindrome (99900999).

The spelling of 493839393 in words is "four hundred ninety-three million, eight hundred thirty-nine thousand, three hundred ninety-three".