63117667 has 4 divisors (see below), whose sum is σ = 63393520. Its totient is φ = 62841816.

The previous prime is 63117653. The next prime is 63117683. The reversal of 63117667 is 76671136.

63117667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63117667 - 2⁷ = 63117539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63115667) 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 3 ways as a sum of consecutive naturals, for example, 137583 + ... + 138040.

It is an arithmetic number, because the mean of its divisors is an integer number (15848380).

Almost surely, 2^63117667 is an apocalyptic number.

63117667 is a deficient number, since it is larger than the sum of its proper divisors (275853).

63117667 is a wasteful number, since it uses less digits than its factorization.

63117667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275852.

The product of its digits is 31752, while the sum is 37.

The square root of 63117667 is about 7944.6627996410. The cubic root of 63117667 is about 398.1532935589.

The spelling of 63117667 in words is "sixty-three million, one hundred seventeen thousand, six hundred sixty-seven".