493881517 has 4 divisors (see below), whose sum is σ = 494335296. Its totient is φ = 493427740.

The previous prime is 493881503. The next prime is 493881523. The reversal of 493881517 is 715188394.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 493881517 - 2²⁷ = 359663789 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 (493881917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225253 + ... + 227434.

It is an arithmetic number, because the mean of its divisors is an integer number (123583824).

Almost surely, 2^493881517 is an apocalyptic number.

It is an amenable number.

493881517 is a deficient number, since it is larger than the sum of its proper divisors (453779).

493881517 is a wasteful number, since it uses less digits than its factorization.

493881517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453778.

The product of its digits is 241920, while the sum is 46.

The square root of 493881517 is about 22223.4452099579. The cubic root of 493881517 is about 790.4497343111.

It can be divided in two parts, 49388 and 1517, that added together give a palindrome (50905).

The spelling of 493881517 in words is "four hundred ninety-three million, eight hundred eighty-one thousand, five hundred seventeen".