875666 has 16 divisors (see below), whose sum is σ = 1461888. Its totient is φ = 390000.

The previous prime is 875663. The next prime is 875681. The reversal of 875666 is 666578.

875666 = 119² + 120² + ... + 162².

875666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (875663) 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, 791 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (91368).

2⁸⁷⁵⁶⁶⁶ is an apocalyptic number.

875666 is a deficient number, since it is larger than the sum of its proper divisors (586222).

875666 is a wasteful number, since it uses less digits than its factorization.

875666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 60480, while the sum is 38.

The square root of 875666 is about 935.7702709533. The cubic root of 875666 is about 95.6708198828.

The spelling of 875666 in words is "eight hundred seventy-five thousand, six hundred sixty-six".