3723721003 has 4 divisors (see below), whose sum is σ = 3732566368. Its totient is φ = 3714875640.

The previous prime is 3723720997. The next prime is 3723721007. The reversal of 3723721003 is 3001273273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3001273273 = 131 ⋅22910483.

It is a cyclic number.

It is not a de Polignac number, because 3723721003 - 2⁵ = 3723720971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3723721007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4422051 + ... + 4422892.

It is an arithmetic number, because the mean of its divisors is an integer number (933141592).

Almost surely, 2^3723721003 is an apocalyptic number.

3723721003 is a deficient number, since it is larger than the sum of its proper divisors (8845365).

3723721003 is an equidigital number, since it uses as much as digits as its factorization.

3723721003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845364.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 3723721003 is about 61022.2992274136. The cubic root of 3723721003 is about 1549.9786334897.

Adding to 3723721003 its reverse (3001273273), we get a palindrome (6724994276).

The spelling of 3723721003 in words is "three billion, seven hundred twenty-three million, seven hundred twenty-one thousand, three".