604506321 has 10 divisors (see below), whose sum is σ = 903028082. Its totient is φ = 403004160.

The previous prime is 604506319. The next prime is 604506323. The reversal of 604506321 is 123605406.

604506321 is a `hidden beast` number, since 604 + 50 + 6 + 3 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (604506319) and next prime (604506323).

It can be written as a sum of positive squares in only one way, i.e., 390615696 + 213890625 = 19764^2 + 14625^2 .

It is not a de Polignac number, because 604506321 - 2¹ = 604506319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (604506323) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3731440 + ... + 3731601.

Almost surely, 2^604506321 is an apocalyptic number.

It is an amenable number.

604506321 is a deficient number, since it is larger than the sum of its proper divisors (298521761).

604506321 is an equidigital number, since it uses as much as digits as its factorization.

604506321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463053 (or 7463044 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 604506321 is about 24586.7102516786. The cubic root of 604506321 is about 845.5389444928.

The spelling of 604506321 in words is "six hundred four million, five hundred six thousand, three hundred twenty-one".