675309 has 8 divisors (see below), whose sum is σ = 906592. Its totient is φ = 447120.

The previous prime is 675299. The next prime is 675313. The reversal of 675309 is 903576.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-675309 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (113324).

2⁶⁷⁵³⁰⁹ is an apocalyptic number.

It is an amenable number.

675309 is a deficient number, since it is larger than the sum of its proper divisors (231283).

675309 is a wasteful number, since it uses less digits than its factorization.

675309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 675309 is about 821.7718661526. The cubic root of 675309 is about 87.7339156078.

The spelling of 675309 in words is "six hundred seventy-five thousand, three hundred nine".