665034 has 16 divisors (see below), whose sum is σ = 1338240. Its totient is φ = 220320.

The previous prime is 665029. The next prime is 665039. The reversal of 665034 is 430566.

It is an interprime number because it is at equal distance from previous prime (665029) and next prime (665039).

It is a junction number, because it is equal to n+sod(n) for n = 664995 and 665013.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 665034.

It is not an unprimeable number, because it can be changed into a prime (665039) by changing a digit.

665034 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 7 ways as a sum of consecutive naturals, for example, 1422 + ... + 1830.

It is an arithmetic number, because the mean of its divisors is an integer number (83640).

2⁶⁶⁵⁰³⁴ is an apocalyptic number.

665034 is an abundant number, since it is smaller than the sum of its proper divisors (673206).

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

665034 is a wasteful number, since it uses less digits than its factorization.

665034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 665034 is about 815.4961679861. The cubic root of 665034 is about 87.2866748936.

The spelling of 665034 in words is "six hundred sixty-five thousand, thirty-four".