3603021 has 8 divisors (see below), whose sum is σ = 4821600. Its totient is φ = 2393232.

The previous prime is 3603007. The next prime is 3603049. The reversal of 3603021 is 1203063.

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

It is not a de Polignac number, because 3603021 - 2¹⁴ = 3586637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3603421) 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, 1171 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (602700).

Almost surely, 2^3603021 is an apocalyptic number.

It is an amenable number.

3603021 is a deficient number, since it is larger than the sum of its proper divisors (1218579).

3603021 is a wasteful number, since it uses less digits than its factorization.

3603021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 3603021 is about 1898.1625325562. The cubic root of 3603021 is about 153.3047452479.

Adding to 3603021 its reverse (1203063), we get a palindrome (4806084).

The spelling of 3603021 in words is "three million, six hundred three thousand, twenty-one".