3603646 has 4 divisors (see below), whose sum is σ = 5405472. Its totient is φ = 1801822.

The previous prime is 3603623. The next prime is 3603659. The reversal of 3603646 is 6463063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6463063 = 2377 ⋅2719.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900910 + ... + 900913.

It is an arithmetic number, because the mean of its divisors is an integer number (1351368).

Almost surely, 2^3603646 is an apocalyptic number.

3603646 is a deficient number, since it is larger than the sum of its proper divisors (1801826).

3603646 is a wasteful number, since it uses less digits than its factorization.

3603646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801825.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 3603646 is about 1898.3271583160. The cubic root of 3603646 is about 153.3136090991.

The spelling of 3603646 in words is "three million, six hundred three thousand, six hundred forty-six".