3721881273 has 16 divisors (see below), whose sum is σ = 5489897472. Its totient is φ = 2223914000.

The previous prime is 3721881263. The next prime is 3721881277.

3721881273 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3721881273 - 2⁸ = 3721881017 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3721881277) 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, 791913 + ... + 796598.

It is an arithmetic number, because the mean of its divisors is an integer number (343118592).

Almost surely, 2^3721881273 is an apocalyptic number.

3721881273 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3721881273 is a deficient number, since it is larger than the sum of its proper divisors (1768016199).

3721881273 is a wasteful number, since it uses less digits than its factorization.

3721881273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588596.

The product of its digits is 112896, while the sum is 42.

The square root of 3721881273 is about 61007.2231215288. The cubic root of 3721881273 is about 1549.7233322354.

The spelling of 3721881273 in words is "three billion, seven hundred twenty-one million, eight hundred eighty-one thousand, two hundred seventy-three".