664298 has 16 divisors (see below), whose sum is σ = 1050624. Its totient is φ = 314640.

The previous prime is 664289. The next prime is 664319. The reversal of 664298 is 892466.

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, 3383 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2⁶⁶⁴²⁹⁸ is an apocalyptic number.

664298 is a deficient number, since it is larger than the sum of its proper divisors (386326).

664298 is a wasteful number, since it uses less digits than its factorization.

664298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 20736, while the sum is 35.

The square root of 664298 is about 815.0447840456. The cubic root of 664298 is about 87.2544626525.

The spelling of 664298 in words is "six hundred sixty-four thousand, two hundred ninety-eight".