3726223521 has 16 divisors (see below), whose sum is σ = 5009362944. Its totient is φ = 2463681744.

The previous prime is 3726223451. The next prime is 3726223531. The reversal of 3726223521 is 1253226273.

3726223521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3726223521 - 2⁹ = 3726223009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3726223531) 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, 230320 + ... + 245966.

It is an arithmetic number, because the mean of its divisors is an integer number (313085184).

Almost surely, 2^3726223521 is an apocalyptic number.

It is an amenable number.

3726223521 is a deficient number, since it is larger than the sum of its proper divisors (1283139423).

3726223521 is a wasteful number, since it uses less digits than its factorization.

3726223521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16300.

The product of its digits is 30240, while the sum is 33.

The square root of 3726223521 is about 61042.8007303073. The cubic root of 3726223521 is about 1550.3257755757.

Adding to 3726223521 its reverse (1253226273), we get a palindrome (4979449794).

The spelling of 3726223521 in words is "three billion, seven hundred twenty-six million, two hundred twenty-three thousand, five hundred twenty-one".