63645463 has 6 divisors (see below), whose sum is σ = 74036616. Its totient is φ = 54553212.

The previous prime is 63645437. The next prime is 63645487. The reversal of 63645463 is 36454636.

It is not a de Polignac number, because 63645463 - 2⁹ = 63644951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63645493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649395 + ... + 649492.

It is an arithmetic number, because the mean of its divisors is an integer number (12339436).

Almost surely, 2^63645463 is an apocalyptic number.

63645463 is a deficient number, since it is larger than the sum of its proper divisors (10391153).

63645463 is a wasteful number, since it uses less digits than its factorization.

63645463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298901 (or 1298894 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

The square root of 63645463 is about 7977.8106645871. The cubic root of 63645463 is about 399.2600131428.

The spelling of 63645463 in words is "sixty-three million, six hundred forty-five thousand, four hundred sixty-three".