6464646 has 12 divisors (see below), whose sum is σ = 14006772. Its totient is φ = 2154876.

The previous prime is 6464639. The next prime is 6464687.

It is a happy number.

6464646 is a `hidden beast` number, since 6 + 4 + 6 + 4 + 646 = 666.

6464646 is nontrivially palindromic in base 10.

6464646 is an undulating number in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6464646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179556 + ... + 179591.

It is an arithmetic number, because the mean of its divisors is an integer number (1167231).

Almost surely, 2^6464646 is an apocalyptic number.

6464646 is an abundant number, since it is smaller than the sum of its proper divisors (7542126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464646 is a wasteful number, since it uses less digits than its factorization.

6464646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359155 (or 359152 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 6464646 is about 2542.5668132814. The cubic root of 6464646 is about 186.2865856090.

The spelling of 6464646 in words is "six million, four hundred sixty-four thousand, six hundred forty-six".