319664 has 10 divisors (see below), whose sum is σ = 619380. Its totient is φ = 159824.

The previous prime is 319639. The next prime is 319673. The reversal of 319664 is 466913.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9974 + ... + 10005.

It is an arithmetic number, because the mean of its divisors is an integer number (61938).

2³¹⁹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

319664 is a deficient number, since it is larger than the sum of its proper divisors (299716).

319664 is a wasteful number, since it uses less digits than its factorization.

319664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19987 (or 19981 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 319664 is about 565.3883621017. The cubic root of 319664 is about 68.3750898200.

The spelling of 319664 in words is "three hundred nineteen thousand, six hundred sixty-four".