655817713 has 4 divisors (see below), whose sum is σ = 660981760. Its totient is φ = 650653668.

The previous prime is 655817683. The next prime is 655817719. The reversal of 655817713 is 317718556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655817713 - 2¹⁷ = 655686641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655817713.

It is not an unprimeable number, because it can be changed into a prime (655817719) 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 3 ways as a sum of consecutive naturals, for example, 2581833 + ... + 2582086.

It is an arithmetic number, because the mean of its divisors is an integer number (165245440).

Almost surely, 2^655817713 is an apocalyptic number.

It is an amenable number.

655817713 is a deficient number, since it is larger than the sum of its proper divisors (5164047).

655817713 is a wasteful number, since it uses less digits than its factorization.

655817713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164046.

The product of its digits is 176400, while the sum is 43.

The square root of 655817713 is about 25608.9381466706. The cubic root of 655817713 is about 868.8158077369.

The spelling of 655817713 in words is "six hundred fifty-five million, eight hundred seventeen thousand, seven hundred thirteen".