674543 has 4 divisors (see below), whose sum is σ = 714240. Its totient is φ = 634848.

The previous prime is 674537. The next prime is 674551. The reversal of 674543 is 345476.

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

It is not a de Polignac number, because 674543 - 2¹² = 670447 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674533) 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, 19823 + ... + 19856.

It is an arithmetic number, because the mean of its divisors is an integer number (178560).

2⁶⁷⁴⁵⁴³ is an apocalyptic number.

674543 is a deficient number, since it is larger than the sum of its proper divisors (39697).

674543 is a wasteful number, since it uses less digits than its factorization.

674543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39696.

The product of its digits is 10080, while the sum is 29.

The square root of 674543 is about 821.3056678241. The cubic root of 674543 is about 87.7007309940.

The spelling of 674543 in words is "six hundred seventy-four thousand, five hundred forty-three".