64576648 has 16 divisors (see below), whose sum is σ = 121225500. Its totient is φ = 32249856.

The previous prime is 64576643. The next prime is 64576651. The reversal of 64576648 is 84667546.

64576648 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 64032004 + 544644 = 8002^2 + 738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64576598 and 64576607.

It is not an unprimeable number, because it can be changed into a prime (64576643) 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, 3088 + ... + 11776.

Almost surely, 2^64576648 is an apocalyptic number.

It is an amenable number.

64576648 is a deficient number, since it is larger than the sum of its proper divisors (56648852).

64576648 is a wasteful number, since it uses less digits than its factorization.

64576648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624 (or 9620 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 64576648 is about 8035.9596813324. The cubic root of 64576648 is about 401.1977598485.

The spelling of 64576648 in words is "sixty-four million, five hundred seventy-six thousand, six hundred forty-eight".