494693565 has 32 divisors (see below), whose sum is σ = 819818496. Its totient is φ = 254560320.

The previous prime is 494693561. The next prime is 494693593. The reversal of 494693565 is 565396494.

It is not a de Polignac number, because 494693565 - 2² = 494693561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494693561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45114 + ... + 54996.

It is an arithmetic number, because the mean of its divisors is an integer number (25619328).

Almost surely, 2^494693565 is an apocalyptic number.

It is an amenable number.

494693565 is a deficient number, since it is larger than the sum of its proper divisors (325124931).

494693565 is a wasteful number, since it uses less digits than its factorization.

494693565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009.

The product of its digits is 3499200, while the sum is 51.

The square root of 494693565 is about 22241.7077806539. The cubic root of 494693565 is about 790.8827205143.

The spelling of 494693565 in words is "four hundred ninety-four million, six hundred ninety-three thousand, five hundred sixty-five".