674626321 has 2 divisors, whose sum is σ = 674626322. Its totient is φ = 674626320.

The previous prime is 674626313. The next prime is 674626327. The reversal of 674626321 is 123626476.

674626321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 674129296 + 497025 = 25964^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 674626321 - 2³ = 674626313 is a prime.

It is not a weakly prime, because it can be changed into another prime (674626327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337313160 + 337313161.

It is an arithmetic number, because the mean of its divisors is an integer number (337313161).

Almost surely, 2^674626321 is an apocalyptic number.

It is an amenable number.

674626321 is a deficient number, since it is larger than the sum of its proper divisors (1).

674626321 is an equidigital number, since it uses as much as digits as its factorization.

674626321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 674626321 is about 25973.5696622547. The cubic root of 674626321 is about 877.0434183950.

The spelling of 674626321 in words is "six hundred seventy-four million, six hundred twenty-six thousand, three hundred twenty-one".