63116987 has 2 divisors, whose sum is σ = 63116988. Its totient is φ = 63116986.

The previous prime is 63116959. The next prime is 63117017. The reversal of 63116987 is 78961136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63116987 - 2⁶ = 63116923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63116927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31558493 + 31558494.

It is an arithmetic number, because the mean of its divisors is an integer number (31558494).

Almost surely, 2^63116987 is an apocalyptic number.

63116987 is a deficient number, since it is larger than the sum of its proper divisors (1).

63116987 is an equidigital number, since it uses as much as digits as its factorization.

63116987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 63116987 is about 7944.6200034992. The cubic root of 63116987 is about 398.1518637151.

The spelling of 63116987 in words is "sixty-three million, one hundred sixteen thousand, nine hundred eighty-seven".