3642003 has 10 divisors (see below), whose sum is σ = 5440644. Its totient is φ = 2427948.

The previous prime is 3641999. The next prime is 3642019. The reversal of 3642003 is 3002463.

It is not a de Polignac number, because 3642003 - 2² = 3641999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3642203) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22401 + ... + 22562.

Almost surely, 2^3642003 is an apocalyptic number.

3642003 is a deficient number, since it is larger than the sum of its proper divisors (1798641).

3642003 is an equidigital number, since it uses as much as digits as its factorization.

3642003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44975 (or 44966 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3642003 is about 1908.4032592720. The cubic root of 3642003 is about 153.8556442287.

Adding to 3642003 its reverse (3002463), we get a palindrome (6644466).

The spelling of 3642003 in words is "three million, six hundred forty-two thousand, three".