64673344 has 28 divisors (see below), whose sum is σ = 128916684. Its totient is φ = 32190464.

The previous prime is 64673341. The next prime is 64673369. The reversal of 64673344 is 44337646.

64673344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5198400 + 59474944 = 2280^2 + 7712^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64673341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12744 + ... + 17080.

Almost surely, 2^64673344 is an apocalyptic number.

64673344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64673344 is a deficient number, since it is larger than the sum of its proper divisors (64243340).

64673344 is a wasteful number, since it uses less digits than its factorization.

64673344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 4572 counting only the distinct ones).

The product of its digits is 145152, while the sum is 37.

The square root of 64673344 is about 8041.9738870504. The cubic root of 64673344 is about 401.3979089354.

The spelling of 64673344 in words is "sixty-four million, six hundred seventy-three thousand, three hundred forty-four".