493065823 has 4 divisors (see below), whose sum is σ = 493205760. Its totient is φ = 492925888.

The previous prime is 493065721. The next prime is 493065847. The reversal of 493065823 is 328560394.

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 493065823 - 2⁹ = 493065311 is a prime.

It is a super-2 number, since 2×493065823² = 486227811621334658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493065893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64543 + ... + 71776.

It is an arithmetic number, because the mean of its divisors is an integer number (123301440).

Almost surely, 2^493065823 is an apocalyptic number.

493065823 is a deficient number, since it is larger than the sum of its proper divisors (139937).

493065823 is a wasteful number, since it uses less digits than its factorization.

493065823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139936.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 493065823 is about 22205.0855211143. The cubic root of 493065823 is about 790.0143259700.

The spelling of 493065823 in words is "four hundred ninety-three million, sixty-five thousand, eight hundred twenty-three".