6463481 has 4 divisors (see below), whose sum is σ = 6470772. Its totient is φ = 6456192.

The previous prime is 6463463. The next prime is 6463489. The reversal of 6463481 is 1843646.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 133225 = 2516^2 + 365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6463481 is a prime.

It is a super-2 number, since 2×6463481² = 83553173274722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6463489) 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, 2096 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (1617693).

Almost surely, 2^6463481 is an apocalyptic number.

It is an amenable number.

6463481 is a deficient number, since it is larger than the sum of its proper divisors (7291).

6463481 is a wasteful number, since it uses less digits than its factorization.

6463481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7290.

The product of its digits is 13824, while the sum is 32.

The square root of 6463481 is about 2542.3377037679. The cubic root of 6463481 is about 186.2753946425.

The spelling of 6463481 in words is "six million, four hundred sixty-three thousand, four hundred eighty-one".