604328021 has 16 divisors (see below), whose sum is σ = 678509568. Its totient is φ = 533535600.

The previous prime is 604328017. The next prime is 604328027. The reversal of 604328021 is 120823406.

It is a cyclic number.

It is not a de Polignac number, because 604328021 - 2² = 604328017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604328027) 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, 63266 + ... + 72188.

It is an arithmetic number, because the mean of its divisors is an integer number (42406848).

Almost surely, 2^604328021 is an apocalyptic number.

It is an amenable number.

604328021 is a deficient number, since it is larger than the sum of its proper divisors (74181547).

604328021 is a wasteful number, since it uses less digits than its factorization.

604328021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 604328021 is about 24583.0840416739. The cubic root of 604328021 is about 845.4558053464.

The spelling of 604328021 in words is "six hundred four million, three hundred twenty-eight thousand, twenty-one".