3721001273 has 4 divisors (see below), whose sum is σ = 4059274128. Its totient is φ = 3382728420.

The previous prime is 3721001257. The next prime is 3721001353.

3721001273 is nontrivially palindromic in base 10.

3721001273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3721001273 - 2⁴ = 3721001257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721001243) 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, 169136411 + ... + 169136432.

It is an arithmetic number, because the mean of its divisors is an integer number (1014818532).

Almost surely, 2^3721001273 is an apocalyptic number.

It is an amenable number.

3721001273 is a deficient number, since it is larger than the sum of its proper divisors (338272855).

3721001273 is a wasteful number, since it uses less digits than its factorization.

3721001273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338272854.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 3721001273 is about 61000.0104344253. The cubic root of 3721001273 is about 1549.6011839697.

It can be divided in two parts, 372100 and 1273, that added together give a palindrome (373373).

The spelling of 3721001273 in words is "three billion, seven hundred twenty-one million, one thousand, two hundred seventy-three".