63986329 has 8 divisors (see below), whose sum is σ = 69863040. Its totient is φ = 58119600.

The previous prime is 63986323. The next prime is 63986353. The reversal of 63986329 is 92368936.

It is a happy number.

63986329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63986329 - 2⁵ = 63986297 is a prime.

It is a pancake number, because a pancake can be divided into 63986329 parts by 11312 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63986323) 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 7 ways as a sum of consecutive naturals, for example, 19027 + ... + 22135.

It is an arithmetic number, because the mean of its divisors is an integer number (8732880).

Almost surely, 2^63986329 is an apocalyptic number.

It is an amenable number.

63986329 is a deficient number, since it is larger than the sum of its proper divisors (5876711).

63986329 is a wasteful number, since it uses less digits than its factorization.

63986329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991.

The product of its digits is 419904, while the sum is 46.

The square root of 63986329 is about 7999.1455168662. The cubic root of 63986329 is about 399.9715167218.

It can be divided in two parts, 639 and 86329, that added together give a palindrome (86968).

The spelling of 63986329 in words is "sixty-three million, nine hundred eighty-six thousand, three hundred twenty-nine".