665882 has 8 divisors (see below), whose sum is σ = 1141536. Its totient is φ = 285372.

The previous prime is 665857. The next prime is 665897. The reversal of 665882 is 288566.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23768 + ... + 23795.

It is an arithmetic number, because the mean of its divisors is an integer number (142692).

2⁶⁶⁵⁸⁸² is an apocalyptic number.

665882 is a deficient number, since it is larger than the sum of its proper divisors (475654).

665882 is a wasteful number, since it uses less digits than its factorization.

665882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47572.

The product of its digits is 23040, while the sum is 35.

The square root of 665882 is about 816.0159312170. The cubic root of 665882 is about 87.3237595446.

The spelling of 665882 in words is "six hundred sixty-five thousand, eight hundred eighty-two".