704664 has 24 divisors (see below), whose sum is σ = 1908660. Its totient is φ = 234864.

The previous prime is 704663. The next prime is 704681. The reversal of 704664 is 466407.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704663) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 4822 + ... + 4965.

2⁷⁰⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

704664 is an abundant number, since it is smaller than the sum of its proper divisors (1203996).

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

704664 is a wasteful number, since it uses less digits than its factorization.

704664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799 (or 9792 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 704664 is about 839.4426722534. The cubic root of 704664 is about 88.9871630688.

The spelling of 704664 in words is "seven hundred four thousand, six hundred sixty-four".