674880065 has 4 divisors (see below), whose sum is σ = 809856084. Its totient is φ = 539904048.

The previous prime is 674880061. The next prime is 674880067. The reversal of 674880065 is 560088476.

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 523860544 + 151019521 = 22888^2 + 12289^2 .

It is a cyclic number.

It is not a de Polignac number, because 674880065 - 2² = 674880061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 674879998 and 674880025.

It is not an unprimeable number, because it can be changed into a prime (674880061) by changing a digit.

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, 67488002 + ... + 67488011.

It is an arithmetic number, because the mean of its divisors is an integer number (202464021).

Almost surely, 2^674880065 is an apocalyptic number.

It is an amenable number.

674880065 is a deficient number, since it is larger than the sum of its proper divisors (134976019).

674880065 is a wasteful number, since it uses less digits than its factorization.

674880065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134976018.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 674880065 is about 25978.4538608440. The cubic root of 674880065 is about 877.1533640061.

The spelling of 674880065 in words is "six hundred seventy-four million, eight hundred eighty thousand, sixty-five".