6631463 has 4 divisors (see below), whose sum is σ = 6793248. Its totient is φ = 6469680.

The previous prime is 6631447. The next prime is 6631477. The reversal of 6631463 is 3641366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6631463 - 2⁴ = 6631447 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 (6631483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80831 + ... + 80912.

It is an arithmetic number, because the mean of its divisors is an integer number (1698312).

Almost surely, 2^6631463 is an apocalyptic number.

6631463 is a deficient number, since it is larger than the sum of its proper divisors (161785).

6631463 is a wasteful number, since it uses less digits than its factorization.

6631463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161784.

The product of its digits is 7776, while the sum is 29.

The square root of 6631463 is about 2575.1627133057. The cubic root of 6631463 is about 187.8753417606.

It can be divided in two parts, 663 and 1463, that multiplied together give a palindrome (969969).

The spelling of 6631463 in words is "six million, six hundred thirty-one thousand, four hundred sixty-three".