63543473 has 4 divisors (see below), whose sum is σ = 72621120. Its totient is φ = 54465828.

The previous prime is 63543463. The next prime is 63543497. The reversal of 63543473 is 37434536.

63543473 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63543473 - 2⁶ = 63543409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63543463) 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, 4538813 + ... + 4538826.

It is an arithmetic number, because the mean of its divisors is an integer number (18155280).

Almost surely, 2^63543473 is an apocalyptic number.

It is an amenable number.

63543473 is a deficient number, since it is larger than the sum of its proper divisors (9077647).

63543473 is an equidigital number, since it uses as much as digits as its factorization.

63543473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077646.

The product of its digits is 90720, while the sum is 35.

The square root of 63543473 is about 7971.4159971739. The cubic root of 63543473 is about 399.0466316104.

The spelling of 63543473 in words is "sixty-three million, five hundred forty-three thousand, four hundred seventy-three".