3986977 has 2 divisors, whose sum is σ = 3986978. Its totient is φ = 3986976.

The previous prime is 3986971. The next prime is 3986987. The reversal of 3986977 is 7796893.

3986977 is digitally balanced in base 2, 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., 2307361 + 1679616 = 1519^2 + 1296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3986977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3986977.

It is not a weakly prime, because it can be changed into another prime (3986971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993488 + 1993489.

It is an arithmetic number, because the mean of its divisors is an integer number (1993489).

Almost surely, 2^3986977 is an apocalyptic number.

It is an amenable number.

3986977 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986977 is an equidigital number, since it uses as much as digits as its factorization.

3986977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 3986977 is about 1996.7415957004. The cubic root of 3986977 is about 158.5676451998.

The spelling of 3986977 in words is "three million, nine hundred eighty-six thousand, nine hundred seventy-seven".