6504631 has 8 divisors (see below), whose sum is σ = 7825280. Its totient is φ = 5281848.

The previous prime is 6504629. The next prime is 6504647. The reversal of 6504631 is 1364056.

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

It is not a de Polignac number, because 6504631 - 2¹ = 6504629 is a prime.

It is a super-2 number, since 2×6504631² = 84620448892322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6504596 and 6504605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24321 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (978160).

Almost surely, 2^6504631 is an apocalyptic number.

6504631 is a deficient number, since it is larger than the sum of its proper divisors (1320649).

6504631 is a wasteful number, since it uses less digits than its factorization.

6504631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48933.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6504631 is about 2550.4178089090. The cubic root of 6504631 is about 186.6698684967.

Adding to 6504631 its reverse (1364056), we get a palindrome (7868687).

The spelling of 6504631 in words is "six million, five hundred four thousand, six hundred thirty-one".