494706565 has 4 divisors (see below), whose sum is σ = 593647884. Its totient is φ = 395765248.

The previous prime is 494706547. The next prime is 494706571. The reversal of 494706565 is 565607494.

It is a Cunningham number, because it is equal to 22242²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178115716 + 316590849 = 13346^2 + 17793^2 .

It is a cyclic number.

It is not a de Polignac number, because 494706565 - 2¹¹ = 494704517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49470652 + ... + 49470661.

It is an arithmetic number, because the mean of its divisors is an integer number (148411971).

Almost surely, 2^494706565 is an apocalyptic number.

It is an amenable number.

494706565 is a deficient number, since it is larger than the sum of its proper divisors (98941319).

494706565 is an equidigital number, since it uses as much as digits as its factorization.

494706565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98941318.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 494706565 is about 22242.0000224800. Note that the first 4 decimals coincide. The cubic root of 494706565 is about 790.8896482948.

The spelling of 494706565 in words is "four hundred ninety-four million, seven hundred six thousand, five hundred sixty-five".