664296 has 32 divisors (see below), whose sum is σ = 1684800. Its totient is φ = 218240.

The previous prime is 664289. The next prime is 664319. The reversal of 664296 is 692466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (52650).

2⁶⁶⁴²⁹⁶ is an apocalyptic number.

It is an amenable number.

664296 is an abundant number, since it is smaller than the sum of its proper divisors (1020504).

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

664296 is a wasteful number, since it uses less digits than its factorization.

664296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 664296 is about 815.0435571183. The cubic root of 664296 is about 87.2543750868.

The spelling of 664296 in words is "six hundred sixty-four thousand, two hundred ninety-six".