63715963 has 2 divisors, whose sum is σ = 63715964. Its totient is φ = 63715962.

The previous prime is 63715921. The next prime is 63715979. The reversal of 63715963 is 36951736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63715963 - 2¹³ = 63707771 is a prime.

It is not a weakly prime, because it can be changed into another prime (63715363) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31857981 + 31857982.

It is an arithmetic number, because the mean of its divisors is an integer number (31857982).

Almost surely, 2^63715963 is an apocalyptic number.

63715963 is a deficient number, since it is larger than the sum of its proper divisors (1).

63715963 is an equidigital number, since it uses as much as digits as its factorization.

63715963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 63715963 is about 7982.2279471336. The cubic root of 63715963 is about 399.4073786835.

The spelling of 63715963 in words is "sixty-three million, seven hundred fifteen thousand, nine hundred sixty-three".