64648456 has 8 divisors (see below), whose sum is σ = 121215870. Its totient is φ = 32324224.

The previous prime is 64648447. The next prime is 64648481. The reversal of 64648456 is 65484646.

64648456 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 only one way, i.e., 49702500 + 14945956 = 7050^2 + 3866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4040521 + ... + 4040536.

Almost surely, 2^64648456 is an apocalyptic number.

It is an amenable number.

64648456 is a deficient number, since it is larger than the sum of its proper divisors (56567414).

64648456 is a wasteful number, since it uses less digits than its factorization.

64648456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081063 (or 8081059 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 64648456 is about 8040.4263568545. The cubic root of 64648456 is about 401.3464128461.

The spelling of 64648456 in words is "sixty-four million, six hundred forty-eight thousand, four hundred fifty-six".