3645003 has 8 divisors (see below), whose sum is σ = 4868928. Its totient is φ = 2425544.

The previous prime is 3644999. The next prime is 3645007. The reversal of 3645003 is 3005463.

It is an interprime number because it is at equal distance from previous prime (3644999) and next prime (3645007).

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

It is a cyclic number.

It is not a de Polignac number, because 3645003 - 2² = 3644999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3645007) 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, 2200 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (608616).

Almost surely, 2^3645003 is an apocalyptic number.

3645003 is a deficient number, since it is larger than the sum of its proper divisors (1223925).

3645003 is a wasteful number, since it uses less digits than its factorization.

3645003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 3645003 is about 1909.1890948777. The cubic root of 3645003 is about 153.8978774225.

The spelling of 3645003 in words is "three million, six hundred forty-five thousand, three".