664335 has 64 divisors (see below), whose sum is σ = 1459200. Its totient is φ = 279936.

The previous prime is 664331. The next prime is 664357. The reversal of 664335 is 533466.

664335 = 32² + 33² + ... + 126².

It is not a de Polignac number, because 664335 - 2² = 664331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 6⁴ + 6⁶ + 3⁸ + 4⁴ + 3¹² + 5⁷ .

664335 is an undulating number in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 664299 and 664308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17937 + ... + 17973.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2⁶⁶⁴³³⁵ is an apocalyptic number.

664335 is an abundant number, since it is smaller than the sum of its proper divisors (794865).

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

664335 is a wasteful number, since it uses less digits than its factorization.

664335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 71 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 664335 is about 815.0674818688. The cubic root of 664335 is about 87.2560825857.

It can be divided in two parts, 664 and 335, that added together give a palindrome (999).

The spelling of 664335 in words is "six hundred sixty-four thousand, three hundred thirty-five".