493080813 has 6 divisors (see below), whose sum is σ = 712227854. Its totient is φ = 328720536.

The previous prime is 493080803. The next prime is 493080821. The reversal of 493080813 is 318080394.

It can be written as a sum of positive squares in only one way, i.e., 489382884 + 3697929 = 22122^2 + 1923^2 .

It is not a de Polignac number, because 493080813 - 2⁵ = 493080781 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 (493080803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27393370 + ... + 27393387.

Almost surely, 2^493080813 is an apocalyptic number.

It is an amenable number.

493080813 is a deficient number, since it is larger than the sum of its proper divisors (219147041).

493080813 is a wasteful number, since it uses less digits than its factorization.

493080813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54786763 (or 54786760 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 493080813 is about 22205.4230538398. The cubic root of 493080813 is about 790.0223317941.

The spelling of 493080813 in words is "four hundred ninety-three million, eighty thousand, eight hundred thirteen".