3988782361 has 2 divisors, whose sum is σ = 3988782362. Its totient is φ = 3988782360.

The previous prime is 3988782353. The next prime is 3988782389. The reversal of 3988782361 is 1632878893.

3988782361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271094336 + 1717688025 = 47656^2 + 41445^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988782361 - 2³ = 3988782353 is a prime.

It is not a weakly prime, because it can be changed into another prime (3988782311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994391180 + 1994391181.

It is an arithmetic number, because the mean of its divisors is an integer number (1994391181).

Almost surely, 2^3988782361 is an apocalyptic number.

It is an amenable number.

3988782361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988782361 is an equidigital number, since it uses as much as digits as its factorization.

3988782361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 55.

The square root of 3988782361 is about 63156.8077169833. The cubic root of 3988782361 is about 1585.9157549788.

The spelling of 3988782361 in words is "three billion, nine hundred eighty-eight million, seven hundred eighty-two thousand, three hundred sixty-one".