674813 has 2 divisors, whose sum is σ = 674814. Its totient is φ = 674812.

The previous prime is 674789. The next prime is 674827. The reversal of 674813 is 318476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597529 + 77284 = 773^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 674813 - 2⁶ = 674749 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674833) 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, 337406 + 337407.

It is an arithmetic number, because the mean of its divisors is an integer number (337407).

2⁶⁷⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

674813 is a deficient number, since it is larger than the sum of its proper divisors (1).

674813 is an equidigital number, since it uses as much as digits as its factorization.

674813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 674813 is about 821.4700237988. The cubic root of 674813 is about 87.7124307861.

It can be divided in two parts, 6 and 74813, that multiplied together give a triangular number (448878 = T₉₄₇).

The spelling of 674813 in words is "six hundred seventy-four thousand, eight hundred thirteen".