875609 has 8 divisors (see below), whose sum is σ = 1024320. Its totient is φ = 732816.

The previous prime is 875593. The next prime is 875617. The reversal of 875609 is 906578.

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

It is not a de Polignac number, because 875609 - 2⁴ = 875593 is a prime.

It is a super-2 number, since 2×875609² = 1533382241762, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875629) 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 7 ways as a sum of consecutive naturals, for example, 1154 + ... + 1755.

It is an arithmetic number, because the mean of its divisors is an integer number (128040).

2⁸⁷⁵⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

875609 is a deficient number, since it is larger than the sum of its proper divisors (148711).

875609 is a wasteful number, since it uses less digits than its factorization.

875609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 875609 is about 935.7398142646. The cubic root of 875609 is about 95.6687439942.

The spelling of 875609 in words is "eight hundred seventy-five thousand, six hundred nine".