674285321 has 2 divisors, whose sum is σ = 674285322. Its totient is φ = 674285320.

The previous prime is 674285317. The next prime is 674285329. The reversal of 674285321 is 123582476.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674129296 + 156025 = 25964^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 674285321 - 2² = 674285317 is a prime.

It is a Chen prime.

It is equal to p_34989131 and since 674285321 and 34989131 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (674285329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337142660 + 337142661.

It is an arithmetic number, because the mean of its divisors is an integer number (337142661).

Almost surely, 2^674285321 is an apocalyptic number.

It is an amenable number.

674285321 is a deficient number, since it is larger than the sum of its proper divisors (1).

674285321 is an equidigital number, since it uses as much as digits as its factorization.

674285321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 674285321 is about 25967.0044672080. The cubic root of 674285321 is about 876.8956219035.

The spelling of 674285321 in words is "six hundred seventy-four million, two hundred eighty-five thousand, three hundred twenty-one".