63877361 has 2 divisors, whose sum is σ = 63877362. Its totient is φ = 63877360.

The previous prime is 63877337. The next prime is 63877397. The reversal of 63877361 is 16377836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54538225 + 9339136 = 7385^2 + 3056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63877361 is a prime.

It is not a weakly prime, because it can be changed into another prime (63877321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31938680 + 31938681.

It is an arithmetic number, because the mean of its divisors is an integer number (31938681).

Almost surely, 2^63877361 is an apocalyptic number.

It is an amenable number.

63877361 is a deficient number, since it is larger than the sum of its proper divisors (1).

63877361 is an equidigital number, since it uses as much as digits as its factorization.

63877361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 41.

The square root of 63877361 is about 7992.3313870234. The cubic root of 63877361 is about 399.7443387114.

The spelling of 63877361 in words is "sixty-three million, eight hundred seventy-seven thousand, three hundred sixty-one".