675439 has 4 divisors (see below), whose sum is σ = 698760. Its totient is φ = 652120.

The previous prime is 675419. The next prime is 675449. The reversal of 675439 is 934576.

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 675439 - 2⁵ = 675407 is a prime.

It is a Duffinian number.

675439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675419) 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, 11617 + ... + 11674.

It is an arithmetic number, because the mean of its divisors is an integer number (174690).

2⁶⁷⁵⁴³⁹ is an apocalyptic number.

675439 is a deficient number, since it is larger than the sum of its proper divisors (23321).

675439 is a wasteful number, since it uses less digits than its factorization.

675439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23320.

The product of its digits is 22680, while the sum is 34.

The square root of 675439 is about 821.8509597245. The cubic root of 675439 is about 87.7395449702.

The spelling of 675439 in words is "six hundred seventy-five thousand, four hundred thirty-nine".