674727329 has 4 divisors (see below), whose sum is σ = 679652484. Its totient is φ = 669802176.

The previous prime is 674727293. The next prime is 674727337. The reversal of 674727329 is 923727476.

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 424360000 + 250367329 = 20600^2 + 15823^2 .

It is a cyclic number.

It is not a de Polignac number, because 674727329 - 2⁸ = 674727073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674727349) 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, 2462372 + ... + 2462645.

It is an arithmetic number, because the mean of its divisors is an integer number (169913121).

Almost surely, 2^674727329 is an apocalyptic number.

It is an amenable number.

674727329 is a deficient number, since it is larger than the sum of its proper divisors (4925155).

674727329 is a wasteful number, since it uses less digits than its factorization.

674727329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925154.

The product of its digits is 889056, while the sum is 47.

The square root of 674727329 is about 25975.5140276376. The cubic root of 674727329 is about 877.0871878013.

The spelling of 674727329 in words is "six hundred seventy-four million, seven hundred twenty-seven thousand, three hundred twenty-nine".