3912114721 has 2 divisors, whose sum is σ = 3912114722. Its totient is φ = 3912114720.

The previous prime is 3912114667. The next prime is 3912114737. The reversal of 3912114721 is 1274112193.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3304985121 + 607129600 = 57489^2 + 24640^2 .

It is a cyclic number.

It is not a de Polignac number, because 3912114721 - 2⁹ = 3912114209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3912115721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956057360 + 1956057361.

It is an arithmetic number, because the mean of its divisors is an integer number (1956057361).

Almost surely, 2^3912114721 is an apocalyptic number.

It is an amenable number.

3912114721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3912114721 is an equidigital number, since it uses as much as digits as its factorization.

3912114721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 3912114721 is about 62546.9001709917. The cubic root of 3912114721 is about 1575.6890873667.

It can be divided in two parts, 391 and 2114721, that added together give a palindrome (2115112).

The spelling of 3912114721 in words is "three billion, nine hundred twelve million, one hundred fourteen thousand, seven hundred twenty-one".