63986061 has 16 divisors (see below), whose sum is σ = 88000704. Its totient is φ = 41324544.

The previous prime is 63986057. The next prime is 63986071. The reversal of 63986061 is 16068936.

It is a happy number.

63986061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63986061 - 2² = 63986057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63986071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27406 + ... + 29648.

It is an arithmetic number, because the mean of its divisors is an integer number (5500044).

Almost surely, 2^63986061 is an apocalyptic number.

It is an amenable number.

63986061 is a deficient number, since it is larger than the sum of its proper divisors (24014643).

63986061 is a wasteful number, since it uses less digits than its factorization.

63986061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 63986061 is about 7999.1287650594. The cubic root of 63986061 is about 399.9709583082.

The spelling of 63986061 in words is "sixty-three million, nine hundred eighty-six thousand, sixty-one".