3977562977 has 2 divisors, whose sum is σ = 3977562978. Its totient is φ = 3977562976.

The previous prime is 3977562929. The next prime is 3977563103. The reversal of 3977562977 is 7792657793.

3977562977 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., 3290284321 + 687278656 = 57361^2 + 26216^2 .

It is a cyclic number.

It is not a de Polignac number, because 3977562977 - 2¹⁰ = 3977561953 is a prime.

It is a super-2 number, since 2×3977562977² = 31642014472002205058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3977562907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1988781488 + 1988781489.

It is an arithmetic number, because the mean of its divisors is an integer number (1988781489).

Almost surely, 2^3977562977 is an apocalyptic number.

It is an amenable number.

3977562977 is a deficient number, since it is larger than the sum of its proper divisors (1).

3977562977 is an equidigital number, since it uses as much as digits as its factorization.

3977562977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35006580, while the sum is 62.

The square root of 3977562977 is about 63067.9235190124. The cubic root of 3977562977 is about 1584.4274389402.

The spelling of 3977562977 in words is "three billion, nine hundred seventy-seven million, five hundred sixty-two thousand, nine hundred seventy-seven".