665367 has 8 divisors (see below), whose sum is σ = 925824. Its totient is φ = 424248.

The previous prime is 665359. The next prime is 665369. The reversal of 665367 is 763566.

665367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 665367 - 2³ = 665359 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 665367.

It is not an unprimeable number, because it can be changed into a prime (665369) 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, 4753 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (115728).

2⁶⁶⁵³⁶⁷ is an apocalyptic number.

665367 is a deficient number, since it is larger than the sum of its proper divisors (260457).

665367 is a wasteful number, since it uses less digits than its factorization.

665367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669.

The product of its digits is 22680, while the sum is 33.

The square root of 665367 is about 815.7003126149. The cubic root of 665367 is about 87.3012413732.

The spelling of 665367 in words is "six hundred sixty-five thousand, three hundred sixty-seven".