674589 has 4 divisors (see below), whose sum is σ = 899456. Its totient is φ = 449724.

The previous prime is 674563. The next prime is 674603. The reversal of 674589 is 985476.

674589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 674589 - 2⁷ = 674461 is a prime.

It is a D-number.

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 (674189) 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, 112429 + ... + 112434.

It is an arithmetic number, because the mean of its divisors is an integer number (224864).

2⁶⁷⁴⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

674589 is a deficient number, since it is larger than the sum of its proper divisors (224867).

674589 is a wasteful number, since it uses less digits than its factorization.

674589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224866.

The product of its digits is 60480, while the sum is 39.

The square root of 674589 is about 821.3336715367. Note that the first 3 decimals coincide. The cubic root of 674589 is about 87.7027245125.

It can be divided in two parts, 67 and 4589, that added together give a triangular number (4656 = T₉₆).

The spelling of 674589 in words is "six hundred seventy-four thousand, five hundred eighty-nine".