674872313 has 4 divisors (see below), whose sum is σ = 675764580. Its totient is φ = 673980048.

The previous prime is 674872309. The next prime is 674872321. The reversal of 674872313 is 313278476.

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 237560569 + 437311744 = 15413^2 + 20912^2 .

It is a cyclic number.

It is not a de Polignac number, because 674872313 - 2² = 674872309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674878313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444998 + ... + 446511.

It is an arithmetic number, because the mean of its divisors is an integer number (168941145).

Almost surely, 2^674872313 is an apocalyptic number.

It is an amenable number.

674872313 is a deficient number, since it is larger than the sum of its proper divisors (892267).

674872313 is an equidigital number, since it uses as much as digits as its factorization.

674872313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892266.

The product of its digits is 169344, while the sum is 41.

The square root of 674872313 is about 25978.3046598503. The cubic root of 674872313 is about 877.1500055235.

The spelling of 674872313 in words is "six hundred seventy-four million, eight hundred seventy-two thousand, three hundred thirteen".