664348 has 12 divisors (see below), whose sum is σ = 1168552. Its totient is φ = 330480.

The previous prime is 664331. The next prime is 664357. The reversal of 664348 is 843466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958 + ... + 1498.

2⁶⁶⁴³⁴⁸ is an apocalyptic number.

It is an amenable number.

664348 is a deficient number, since it is larger than the sum of its proper divisors (504204).

664348 is a wasteful number, since it uses less digits than its factorization.

664348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 850 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 664348 is about 815.0754566296. The cubic root of 664348 is about 87.2566517371.

The spelling of 664348 in words is "six hundred sixty-four thousand, three hundred forty-eight".