63006891 has 16 divisors (see below), whose sum is σ = 85598208. Its totient is φ = 41216000.

The previous prime is 63006887. The next prime is 63006899. The reversal of 63006891 is 19860036.

63006891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63006891 - 2² = 63006887 is a prime.

It is a Smith number, since the sum of its digits (33) 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 (63006899) 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 15 ways as a sum of consecutive naturals, for example, 54166 + ... + 55316.

It is an arithmetic number, because the mean of its divisors is an integer number (5349888).

Almost surely, 2^63006891 is an apocalyptic number.

63006891 is a deficient number, since it is larger than the sum of its proper divisors (22591317).

63006891 is a wasteful number, since it uses less digits than its factorization.

63006891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 63006891 is about 7937.6880135213. The cubic root of 63006891 is about 397.9202280296.

The spelling of 63006891 in words is "sixty-three million, six thousand, eight hundred ninety-one".