674310321 has 12 divisors (see below), whose sum is σ = 1031298372. Its totient is φ = 423096576.

The previous prime is 674310319. The next prime is 674310337. The reversal of 674310321 is 123013476.

It can be written as a sum of positive squares in 2 ways, for example, as 465912225 + 208398096 = 21585^2 + 14436^2 .

It is not a de Polignac number, because 674310321 - 2¹ = 674310319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674310121) 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 in 11 ways as a sum of consecutive naturals, for example, 2203476 + ... + 2203781.

It is an arithmetic number, because the mean of its divisors is an integer number (85941531).

Almost surely, 2^674310321 is an apocalyptic number.

It is an amenable number.

674310321 is a deficient number, since it is larger than the sum of its proper divisors (356988051).

674310321 is a wasteful number, since it uses less digits than its factorization.

674310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407280 (or 4407277 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 674310321 is about 25967.4858428767. The cubic root of 674310321 is about 876.9064591158.

Adding to 674310321 its reverse (123013476), we get a palindrome (797323797).

The spelling of 674310321 in words is "six hundred seventy-four million, three hundred ten thousand, three hundred twenty-one".