3798237221 has 2 divisors, whose sum is σ = 3798237222. Its totient is φ = 3798237220.

The previous prime is 3798237193. The next prime is 3798237241. The reversal of 3798237221 is 1227328973.

3798237221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3661581121 + 136656100 = 60511^2 + 11690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3798237221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3798237241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1899118610 + 1899118611.

It is an arithmetic number, because the mean of its divisors is an integer number (1899118611).

Almost surely, 2^3798237221 is an apocalyptic number.

It is an amenable number.

3798237221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3798237221 is an equidigital number, since it uses as much as digits as its factorization.

3798237221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 3798237221 is about 61629.8403454041. The cubic root of 3798237221 is about 1560.2494151123.

The spelling of 3798237221 in words is "three billion, seven hundred ninety-eight million, two hundred thirty-seven thousand, two hundred twenty-one".