63887065 has 16 divisors (see below), whose sum is σ = 83831616. Its totient is φ = 46353600.

The previous prime is 63887059. The next prime is 63887111. The reversal of 63887065 is 56078836.

It is not a de Polignac number, because 63887065 - 2⁷ = 63886937 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 27655 + ... + 29875.

It is an arithmetic number, because the mean of its divisors is an integer number (5239476).

Almost surely, 2^63887065 is an apocalyptic number.

It is an amenable number.

63887065 is a deficient number, since it is larger than the sum of its proper divisors (19944551).

63887065 is a wasteful number, since it uses less digits than its factorization.

63887065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 63887065 is about 7992.9384459034. The cubic root of 63887065 is about 399.7645802210.

The spelling of 63887065 in words is "sixty-three million, eight hundred eighty-seven thousand, sixty-five".