63977057 has 2 divisors, whose sum is σ = 63977058. Its totient is φ = 63977056.

The previous prime is 63977041. The next prime is 63977071. The reversal of 63977057 is 75077936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 27447121 = 6044^2 + 5239^2 .

It is a cyclic number.

It is not a de Polignac number, because 63977057 - 2⁴ = 63977041 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63976999 and 63977017.

It is not a weakly prime, because it can be changed into another prime (63976057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31988528 + 31988529.

It is an arithmetic number, because the mean of its divisors is an integer number (31988529).

Almost surely, 2^63977057 is an apocalyptic number.

It is an amenable number.

63977057 is a deficient number, since it is larger than the sum of its proper divisors (1).

63977057 is an equidigital number, since it uses as much as digits as its factorization.

63977057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 63977057 is about 7998.5659339659. The cubic root of 63977057 is about 399.9521963706.

The spelling of 63977057 in words is "sixty-three million, nine hundred seventy-seven thousand, fifty-seven".