674213 has 4 divisors (see below), whose sum is σ = 686988. Its totient is φ = 661440.

The previous prime is 674189. The next prime is 674227. The reversal of 674213 is 312476.

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 543169 + 131044 = 737^2 + 362^2 .

It is not a de Polignac number, because 674213 - 2¹⁶ = 608677 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674263) 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, 6308 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (171747).

2⁶⁷⁴²¹³ is an apocalyptic number.

It is an amenable number.

674213 is a deficient number, since it is larger than the sum of its proper divisors (12775).

674213 is a wasteful number, since it uses less digits than its factorization.

674213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774.

The product of its digits is 1008, while the sum is 23.

The square root of 674213 is about 821.1047436229. The cubic root of 674213 is about 87.6864270074.

Adding to 674213 its reverse (312476), we get a palindrome (986689).

The spelling of 674213 in words is "six hundred seventy-four thousand, two hundred thirteen".