63495667 has 4 divisors (see below), whose sum is σ = 63900256. Its totient is φ = 63091080.

The previous prime is 63495659. The next prime is 63495673. The reversal of 63495667 is 76659436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63495667 - 2³ = 63495659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63495067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 202059 + ... + 202372.

It is an arithmetic number, because the mean of its divisors is an integer number (15975064).

Almost surely, 2^63495667 is an apocalyptic number.

63495667 is a deficient number, since it is larger than the sum of its proper divisors (404589).

63495667 is a wasteful number, since it uses less digits than its factorization.

63495667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404588.

The product of its digits is 816480, while the sum is 46.

The square root of 63495667 is about 7968.4168440161. The cubic root of 63495667 is about 398.9465342103.

The spelling of 63495667 in words is "sixty-three million, four hundred ninety-five thousand, six hundred sixty-seven".