6464636 has 12 divisors (see below), whose sum is σ = 11908680. Its totient is φ = 3062160.

The previous prime is 6464611. The next prime is 6464639. The reversal of 6464636 is 6364646.

It is a super-2 number, since 2×6464636² = 83583037224992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6464596 and 6464605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464639) 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 3 ways as a sum of consecutive naturals, for example, 42455 + ... + 42606.

It is an arithmetic number, because the mean of its divisors is an integer number (992390).

Almost surely, 2^6464636 is an apocalyptic number.

It is an amenable number.

6464636 is a deficient number, since it is larger than the sum of its proper divisors (5444044).

6464636 is a wasteful number, since it uses less digits than its factorization.

6464636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85084 (or 85082 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 6464636 is about 2542.5648467640. The cubic root of 6464636 is about 186.2864895550.

The spelling of 6464636 in words is "six million, four hundred sixty-four thousand, six hundred thirty-six".