674760565 has 4 divisors (see below), whose sum is σ = 809712684. Its totient is φ = 539808448.

The previous prime is 674760557. The next prime is 674760571. The reversal of 674760565 is 565067476.

674760565 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 523814769 + 150945796 = 22887^2 + 12286^2 .

It is a cyclic number.

It is not a de Polignac number, because 674760565 - 2³ = 674760557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67476052 + ... + 67476061.

It is an arithmetic number, because the mean of its divisors is an integer number (202428171).

Almost surely, 2^674760565 is an apocalyptic number.

It is an amenable number.

674760565 is a deficient number, since it is larger than the sum of its proper divisors (134952119).

674760565 is a wasteful number, since it uses less digits than its factorization.

674760565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134952118.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The square root of 674760565 is about 25976.1537761078. The cubic root of 674760565 is about 877.1015888736.

The spelling of 674760565 in words is "six hundred seventy-four million, seven hundred sixty thousand, five hundred sixty-five".