63986039 has 8 divisors (see below), whose sum is σ = 68972400. Its totient is φ = 59008896.

The previous prime is 63985997. The next prime is 63986057. The reversal of 63986039 is 93068936.

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

It is a cyclic number.

It is not a de Polignac number, because 63986039 - 2⁸ = 63985783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63986239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20639 + ... + 23535.

It is an arithmetic number, because the mean of its divisors is an integer number (8621550).

Almost surely, 2^63986039 is an apocalyptic number.

63986039 is a deficient number, since it is larger than the sum of its proper divisors (4986361).

63986039 is a wasteful number, since it uses less digits than its factorization.

63986039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 63986039 is about 7999.1273899095. The cubic root of 63986039 is about 399.9709124682.

The spelling of 63986039 in words is "sixty-three million, nine hundred eighty-six thousand, thirty-nine".