664410 has 16 divisors (see below), whose sum is σ = 1594656. Its totient is φ = 177168.

The previous prime is 664403. The next prime is 664421. The reversal of 664410 is 14466.

It is a nialpdrome in base 10.

It is an unprimeable number.

664410 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, 11044 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (99666).

2⁶⁶⁴⁴¹⁰ is an apocalyptic number.

664410 is an abundant number, since it is smaller than the sum of its proper divisors (930246).

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

664410 is a wasteful number, since it uses less digits than its factorization.

664410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22157.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 664410 is about 815.1134890308. The cubic root of 664410 is about 87.2593660495.

Adding to 664410 its reverse (14466), we get a palindrome (678876).

The spelling of 664410 in words is "six hundred sixty-four thousand, four hundred ten".