3673221571 has 4 divisors (see below), whose sum is σ = 3673350072. Its totient is φ = 3673093072.

The previous prime is 3673221557. The next prime is 3673221641. The reversal of 3673221571 is 1751223763.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3673221571 - 2⁷ = 3673221443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3673221571.

It is not an unprimeable number, because it can be changed into a prime (3673221271) 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, 135 + ... + 85711.

It is an arithmetic number, because the mean of its divisors is an integer number (918337518).

Almost surely, 2^3673221571 is an apocalyptic number.

3673221571 is a deficient number, since it is larger than the sum of its proper divisors (128501).

3673221571 is an equidigital number, since it uses as much as digits as its factorization.

3673221571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128500.

The product of its digits is 52920, while the sum is 37.

The square root of 3673221571 is about 60607.1082547254. The cubic root of 3673221571 is about 1542.9400140235.

The spelling of 3673221571 in words is "three billion, six hundred seventy-three million, two hundred twenty-one thousand, five hundred seventy-one".