63686067 has 8 divisors (see below), whose sum is σ = 85042896. Its totient is φ = 42393312.

The previous prime is 63686041. The next prime is 63686069. The reversal of 63686067 is 76068636.

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

It is not a de Polignac number, because 63686067 - 2¹² = 63681971 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (63686069) 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, 13648 + ... + 17709.

It is an arithmetic number, because the mean of its divisors is an integer number (10630362).

Almost surely, 2^63686067 is an apocalyptic number.

63686067 is a deficient number, since it is larger than the sum of its proper divisors (21356829).

63686067 is a wasteful number, since it uses less digits than its factorization.

63686067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32037.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 63686067 is about 7980.3550672887. The cubic root of 63686067 is about 399.3449006144.

The spelling of 63686067 in words is "sixty-three million, six hundred eighty-six thousand, sixty-seven".