665262 has 24 divisors (see below), whose sum is σ = 1552824. Its totient is φ = 204624.

The previous prime is 665251. The next prime is 665267. The reversal of 665262 is 262566.

665262 is a `hidden beast` number, since 6 + 652 + 6 + 2 = 666.

665262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665267) by changing a digit.

665262 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1188 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (64701).

2⁶⁶⁵²⁶² is an apocalyptic number.

665262 is an abundant number, since it is smaller than the sum of its proper divisors (887562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665262 is a wasteful number, since it uses less digits than its factorization.

665262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864 (or 2861 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 665262 is about 815.6359482024. The cubic root of 665262 is about 87.2966488639.

The spelling of 665262 in words is "six hundred sixty-five thousand, two hundred sixty-two".