3720003 has 16 divisors (see below), whose sum is σ = 5790720. Its totient is φ = 2079936.

The previous prime is 3719999. The next prime is 3720011. The reversal of 3720003 is 3000273.

It is not a de Polignac number, because 3720003 - 2² = 3719999 is a prime.

3720003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3720023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (361920).

Almost surely, 2^3720003 is an apocalyptic number.

3720003 is a deficient number, since it is larger than the sum of its proper divisors (2070717).

3720003 is a wasteful number, since it uses less digits than its factorization.

3720003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 3720003 is about 1928.7309299122. The cubic root of 3720003 is about 154.9462595521.

Adding to 3720003 its reverse (3000273), we get a palindrome (6720276).

The spelling of 3720003 in words is "three million, seven hundred twenty thousand, three".