654604 has 12 divisors (see below), whose sum is σ = 1176784. Its totient is φ = 318384.

The previous prime is 654601. The next prime is 654611. The reversal of 654604 is 406456.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (654601) 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 in 3 ways as a sum of consecutive naturals, for example, 2064 + ... + 2359.

2⁶⁵⁴⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

654604 is a deficient number, since it is larger than the sum of its proper divisors (522180).

654604 is a wasteful number, since it uses less digits than its factorization.

654604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464 (or 4462 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 654604 is about 809.0760162061. The cubic root of 654604 is about 86.8279508192.

The spelling of 654604 in words is "six hundred fifty-four thousand, six hundred four".