604664 has 8 divisors (see below), whose sum is σ = 1133760. Its totient is φ = 302328.

The previous prime is 604661. The next prime is 604697. The reversal of 604664 is 466406.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37784 + ... + 37799.

It is an arithmetic number, because the mean of its divisors is an integer number (141720).

2⁶⁰⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

604664 is a deficient number, since it is larger than the sum of its proper divisors (529096).

604664 is a wasteful number, since it uses less digits than its factorization.

604664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75589 (or 75585 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 604664 is about 777.6014403279. The cubic root of 604664 is about 84.5612454695.

The spelling of 604664 in words is "six hundred four thousand, six hundred sixty-four".