63187087 has 2 divisors, whose sum is σ = 63187088. Its totient is φ = 63187086.

The previous prime is 63187073. The next prime is 63187093. The reversal of 63187087 is 78078136.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63187087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63187057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31593543 + 31593544.

It is an arithmetic number, because the mean of its divisors is an integer number (31593544).

Almost surely, 2^63187087 is an apocalyptic number.

63187087 is a deficient number, since it is larger than the sum of its proper divisors (1).

63187087 is an equidigital number, since it uses as much as digits as its factorization.

63187087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 63187087 is about 7949.0305698242. The cubic root of 63187087 is about 398.2992097813.

The spelling of 63187087 in words is "sixty-three million, one hundred eighty-seven thousand, eighty-seven".