604945 has 16 divisors (see below), whose sum is σ = 839808. Its totient is φ = 413440.

The previous prime is 604939. The next prime is 604949. The reversal of 604945 is 549406.

It is not a de Polignac number, because 604945 - 2⁹ = 604433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612 + ... + 1258.

It is an arithmetic number, because the mean of its divisors is an integer number (52488).

2⁶⁰⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

604945 is a deficient number, since it is larger than the sum of its proper divisors (234863).

604945 is a wasteful number, since it uses less digits than its factorization.

604945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 604945 is about 777.7821031626. The cubic root of 604945 is about 84.5743425669.

Subtracting from 604945 its product of nonzero digits (4320), we obtain a square (600625 = 775²).

It can be divided in two parts, 60 and 4945, that added together give a palindrome (5005).

The spelling of 604945 in words is "six hundred four thousand, nine hundred forty-five".