6463563 has 8 divisors (see below), whose sum is σ = 8659776. Its totient is φ = 4288200.

The previous prime is 6463537. The next prime is 6463571. The reversal of 6463563 is 3653646.

It is a happy number.

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

It is not a de Polignac number, because 6463563 - 2⁸ = 6463307 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6463573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4473 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (1082472).

Almost surely, 2^6463563 is an apocalyptic number.

6463563 is a deficient number, since it is larger than the sum of its proper divisors (2196213).

6463563 is a wasteful number, since it uses less digits than its factorization.

6463563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425.

The product of its digits is 38880, while the sum is 33.

The square root of 6463563 is about 2542.3538306066. The cubic root of 6463563 is about 186.2761823769.

The spelling of 6463563 in words is "six million, four hundred sixty-three thousand, five hundred sixty-three".