3707852221 has 2 divisors, whose sum is σ = 3707852222. Its totient is φ = 3707852220.

The previous prime is 3707852219. The next prime is 3707852329. The reversal of 3707852221 is 1222587073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3262008996 + 445843225 = 57114^2 + 21115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3707852221 - 2¹ = 3707852219 is a prime.

Together with 3707852219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3707852021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1853926110 + 1853926111.

It is an arithmetic number, because the mean of its divisors is an integer number (1853926111).

Almost surely, 2^3707852221 is an apocalyptic number.

It is an amenable number.

3707852221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3707852221 is an equidigital number, since it uses as much as digits as its factorization.

3707852221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 3707852221 is about 60892.1359536681. The cubic root of 3707852221 is about 1547.7737336686.

It can be divided in two parts, 3707852 and 221, that added together give a palindrome (3708073).

The spelling of 3707852221 in words is "three billion, seven hundred seven million, eight hundred fifty-two thousand, two hundred twenty-one".