875506 has 4 divisors (see below), whose sum is σ = 1313262. Its totient is φ = 437752.

The previous prime is 875503. The next prime is 875509. The reversal of 875506 is 605578.

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

It is an interprime number because it is at equal distance from previous prime (875503) and next prime (875509).

It can be written as a sum of positive squares in only one way, i.e., 855625 + 19881 = 925^2 + 141^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (875503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218875 + ... + 218878.

2⁸⁷⁵⁵⁰⁶ is an apocalyptic number.

875506 is a deficient number, since it is larger than the sum of its proper divisors (437756).

875506 is a wasteful number, since it uses less digits than its factorization.

875506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437755.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 875506 is about 935.6847759796. The cubic root of 875506 is about 95.6649925987.

The spelling of 875506 in words is "eight hundred seventy-five thousand, five hundred six".