63768005 has 8 divisors (see below), whose sum is σ = 87453312. Its totient is φ = 43726608.

The previous prime is 63767999. The next prime is 63768017. The reversal of 63768005 is 50086736.

It is a happy number.

63768005 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 a cyclic number.

It is not a de Polignac number, because 63768005 - 2⁶ = 63767941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1821943 = 63768005 / (6 + 3 + 7 + 6 + 8 + 0 + 0 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 910937 + ... + 911006.

It is an arithmetic number, because the mean of its divisors is an integer number (10931664).

Almost surely, 2^63768005 is an apocalyptic number.

It is an amenable number.

63768005 is a deficient number, since it is larger than the sum of its proper divisors (23685307).

63768005 is a wasteful number, since it uses less digits than its factorization.

63768005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821955.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 63768005 is about 7985.4871485715. The cubic root of 63768005 is about 399.5160919018.

The spelling of 63768005 in words is "sixty-three million, seven hundred sixty-eight thousand, five".