63591047 has 16 divisors (see below), whose sum is σ = 70425600. Its totient is φ = 57052512.

The previous prime is 63591037. The next prime is 63591053. The reversal of 63591047 is 74019536.

63591047 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 a de Polignac number, because none of the positive numbers 2^k-63591047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63590998 and 63591016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63591037) 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, 121328 + ... + 121850.

It is an arithmetic number, because the mean of its divisors is an integer number (4401600).

Almost surely, 2^63591047 is an apocalyptic number.

63591047 is a deficient number, since it is larger than the sum of its proper divisors (6834553).

63591047 is a wasteful number, since it uses less digits than its factorization.

63591047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 63591047 is about 7974.3994758226. The cubic root of 63591047 is about 399.1461934158.

The spelling of 63591047 in words is "sixty-three million, five hundred ninety-one thousand, forty-seven".