674760557 has 2 divisors, whose sum is σ = 674760558. Its totient is φ = 674760556.

The previous prime is 674760553. The next prime is 674760571. The reversal of 674760557 is 755067476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407797636 + 266962921 = 20194^2 + 16339^2 .

It is a cyclic number.

It is not a de Polignac number, because 674760557 - 2² = 674760553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674760553) 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 as a sum of consecutive naturals, namely, 337380278 + 337380279.

It is an arithmetic number, because the mean of its divisors is an integer number (337380279).

Almost surely, 2^674760557 is an apocalyptic number.

It is an amenable number.

674760557 is a deficient number, since it is larger than the sum of its proper divisors (1).

674760557 is an equidigital number, since it uses as much as digits as its factorization.

674760557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The square root of 674760557 is about 25976.1536221204. The cubic root of 674760557 is about 877.1015854073.

The spelling of 674760557 in words is "six hundred seventy-four million, seven hundred sixty thousand, five hundred fifty-seven".