3604561 has 8 divisors (see below), whose sum is σ = 3906144. Its totient is φ = 3312960.

The previous prime is 3604553. The next prime is 3604567. The reversal of 3604561 is 1654063.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3604561 - 2³ = 3604553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3604567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735 + ... + 3196.

It is an arithmetic number, because the mean of its divisors is an integer number (488268).

Almost surely, 2^3604561 is an apocalyptic number.

It is an amenable number.

3604561 is a deficient number, since it is larger than the sum of its proper divisors (301583).

3604561 is a wasteful number, since it uses less digits than its factorization.

3604561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3604561 is about 1898.5681446817. The cubic root of 3604561 is about 153.3265839289.

The spelling of 3604561 in words is "three million, six hundred four thousand, five hundred sixty-one".