63948587 has 2 divisors, whose sum is σ = 63948588. Its totient is φ = 63948586.

The previous prime is 63948583. The next prime is 63948593. The reversal of 63948587 is 78584936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63948587 - 2² = 63948583 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63948583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31974293 + 31974294.

It is an arithmetic number, because the mean of its divisors is an integer number (31974294).

Almost surely, 2^63948587 is an apocalyptic number.

63948587 is a deficient number, since it is larger than the sum of its proper divisors (1).

63948587 is an equidigital number, since it uses as much as digits as its factorization.

63948587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 63948587 is about 7996.7860419046. The cubic root of 63948587 is about 399.8928608889.

The spelling of 63948587 in words is "sixty-three million, nine hundred forty-eight thousand, five hundred eighty-seven".