493716665 has 16 divisors (see below), whose sum is σ = 638765568. Its totient is φ = 364172736.

The previous prime is 493716649. The next prime is 493716667. The reversal of 493716665 is 566617394.

It is a cyclic number.

It is not a de Polignac number, because 493716665 - 2⁴ = 493716649 is a prime.

It is a super-2 number, since 2×493716665² = 487512290597444450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (493716667) 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, 60032 + ... + 67758.

It is an arithmetic number, because the mean of its divisors is an integer number (39922848).

Almost surely, 2^493716665 is an apocalyptic number.

It is an amenable number.

493716665 is a deficient number, since it is larger than the sum of its proper divisors (145048903).

493716665 is a wasteful number, since it uses less digits than its factorization.

493716665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728.

The product of its digits is 816480, while the sum is 47.

The square root of 493716665 is about 22219.7359345245. The cubic root of 493716665 is about 790.3617768313.

The spelling of 493716665 in words is "four hundred ninety-three million, seven hundred sixteen thousand, six hundred sixty-five".