673243 has 4 divisors (see below), whose sum is σ = 674928. Its totient is φ = 671560.

The previous prime is 673241. The next prime is 673247. The reversal of 673243 is 342376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673243 - 2¹ = 673241 is a prime.

It is a super-2 number, since 2×673243² = 906512274098, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁷ + 7 + 2¹⁷ + 3 + 4⁹ + 3⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138 + ... + 1168.

It is an arithmetic number, because the mean of its divisors is an integer number (168732).

2⁶⁷³²⁴³ is an apocalyptic number.

673243 is a deficient number, since it is larger than the sum of its proper divisors (1685).

673243 is a wasteful number, since it uses less digits than its factorization.

673243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684.

The product of its digits is 3024, while the sum is 25.

The square root of 673243 is about 820.5138633807. The cubic root of 673243 is about 87.6443549138.

The spelling of 673243 in words is "six hundred seventy-three thousand, two hundred forty-three".