6464645 has 8 divisors (see below), whose sum is σ = 8462880. Its totient is φ = 4701520.

The previous prime is 6464639. The next prime is 6464687. The reversal of 6464645 is 5464646.

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

It is not a de Polignac number, because 6464645 - 2¹⁶ = 6399109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58715 + ... + 58824.

It is an arithmetic number, because the mean of its divisors is an integer number (1057860).

Almost surely, 2^6464645 is an apocalyptic number.

It is an amenable number.

6464645 is a deficient number, since it is larger than the sum of its proper divisors (1998235).

6464645 is a wasteful number, since it uses less digits than its factorization.

6464645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117555.

The product of its digits is 69120, while the sum is 35.

The square root of 6464645 is about 2542.5666166297. The cubic root of 6464645 is about 186.2865760036.

Subtracting from 6464645 its reverse (5464646), we obtain a palindrome (999999).

The spelling of 6464645 in words is "six million, four hundred sixty-four thousand, six hundred forty-five".