3984120001 has 2 divisors, whose sum is σ = 3984120002. Its totient is φ = 3984120000.

The previous prime is 3984119981. The next prime is 3984120011. The reversal of 3984120001 is 1000214893.

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., 3044390976 + 939729025 = 55176^2 + 30655^2 .

It is a cyclic number.

It is not a de Polignac number, because 3984120001 - 2⁷ = 3984119873 is a prime.

It is not a weakly prime, because it can be changed into another prime (3984120011) 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, 1992060000 + 1992060001.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060001).

Almost surely, 2^3984120001 is an apocalyptic number.

It is an amenable number.

3984120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984120001 is an equidigital number, since it uses as much as digits as its factorization.

3984120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 3984120001 is about 63119.8859393773. The cubic root of 3984120001 is about 1585.2976053536.

Adding to 3984120001 its reverse (1000214893), we get a palindrome (4984334894).

The spelling of 3984120001 in words is "three billion, nine hundred eighty-four million, one hundred twenty thousand, one".