604989 has 40 divisors (see below), whose sum is σ = 1138368. Its totient is φ = 311040.

The previous prime is 604973. The next prime is 604997. The reversal of 604989 is 989406.

It is not a de Polignac number, because 604989 - 2⁴ = 604973 is a prime.

It is a Curzon number.

604989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604939) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6189 + ... + 6285.

2⁶⁰⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

604989 is a deficient number, since it is larger than the sum of its proper divisors (533379).

604989 is a wasteful number, since it uses less digits than its factorization.

604989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 604989 is about 777.8103882052. The cubic root of 604989 is about 84.5763929907.

The spelling of 604989 in words is "six hundred four thousand, nine hundred eighty-nine".