3604005 has 18 divisors (see below), whose sum is σ = 6269094. Its totient is φ = 1915344.

The previous prime is 3603991. The next prime is 3604019. The reversal of 3604005 is 5004063.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3603991) and next prime (3604019).

It can be written as a sum of positive squares in only one way, i.e., 2883204 + 720801 = 1698^2 + 849^2 .

It is not a de Polignac number, because 3604005 - 2⁴ = 3603989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12594 + ... + 12876.

It is an arithmetic number, because the mean of its divisors is an integer number (348283).

Almost surely, 2^3604005 is an apocalyptic number.

It is an amenable number.

3604005 is a deficient number, since it is larger than the sum of its proper divisors (2665089).

3604005 is an equidigital number, since it uses as much as digits as its factorization.

3604005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3604005 is about 1898.4217128973. The cubic root of 3604005 is about 153.3187000318.

Adding to 3604005 its reverse (5004063), we get a palindrome (8608068).

The spelling of 3604005 in words is "three million, six hundred four thousand, five".