3984774901 has 2 divisors, whose sum is σ = 3984774902. Its totient is φ = 3984774900.

The previous prime is 3984774883. The next prime is 3984774907. The reversal of 3984774901 is 1094774893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2314091025 + 1670683876 = 48105^2 + 40874^2 .

It is an emirp because it is prime and its reverse (1094774893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984774901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3984774907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992387450 + 1992387451.

It is an arithmetic number, because the mean of its divisors is an integer number (1992387451).

Almost surely, 2^3984774901 is an apocalyptic number.

It is an amenable number.

3984774901 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984774901 is an equidigital number, since it uses as much as digits as its factorization.

3984774901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 3984774901 is about 63125.0734732246. The cubic root of 3984774901 is about 1585.3844630554.

The spelling of 3984774901 in words is "three billion, nine hundred eighty-four million, seven hundred seventy-four thousand, nine hundred one".