674388173 has 2 divisors, whose sum is σ = 674388174. Its totient is φ = 674388172.

The previous prime is 674388163. The next prime is 674388199. The reversal of 674388173 is 371883476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443439364 + 230948809 = 21058^2 + 15197^2 .

It is a cyclic number.

It is not a de Polignac number, because 674388173 - 2¹⁶ = 674322637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674388163) 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 as a sum of consecutive naturals, namely, 337194086 + 337194087.

It is an arithmetic number, because the mean of its divisors is an integer number (337194087).

Almost surely, 2^674388173 is an apocalyptic number.

It is an amenable number.

674388173 is a deficient number, since it is larger than the sum of its proper divisors (1).

674388173 is an equidigital number, since it uses as much as digits as its factorization.

674388173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 674388173 is about 25968.9848280598. The cubic root of 674388173 is about 876.9402053463.

The spelling of 674388173 in words is "six hundred seventy-four million, three hundred eighty-eight thousand, one hundred seventy-three".