63432643 has 8 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 60365448.

The previous prime is 63432623. The next prime is 63432671. The reversal of 63432643 is 34623436.

63432643 is nontrivially palindromic in base 16.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63432643 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (63432613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353 + ... + 11506.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^63432643 is an apocalyptic number.

63432643 is a deficient number, since it is larger than the sum of its proper divisors (3095357).

63432643 is a wasteful number, since it uses less digits than its factorization.

63432643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14081.

The product of its digits is 31104, while the sum is 31.

The square root of 63432643 is about 7964.4612498273. The cubic root of 63432643 is about 398.8144961728.

The spelling of 63432643 in words is "sixty-three million, four hundred thirty-two thousand, six hundred forty-three".