3981706277 has 2 divisors, whose sum is σ = 3981706278. Its totient is φ = 3981706276.

The previous prime is 3981706243. The next prime is 3981706283. The reversal of 3981706277 is 7726071893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2822371876 + 1159334401 = 53126^2 + 34049^2 .

It is a cyclic number.

It is not a de Polignac number, because 3981706277 - 2¹² = 3981702181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3981706877) 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, 1990853138 + 1990853139.

It is an arithmetic number, because the mean of its divisors is an integer number (1990853139).

Almost surely, 2^3981706277 is an apocalyptic number.

It is an amenable number.

3981706277 is a deficient number, since it is larger than the sum of its proper divisors (1).

3981706277 is an equidigital number, since it uses as much as digits as its factorization.

3981706277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 3981706277 is about 63100.7628876228. The cubic root of 3981706277 is about 1584.9773971374.

The spelling of 3981706277 in words is "three billion, nine hundred eighty-one million, seven hundred six thousand, two hundred seventy-seven".