64448784 has 75 divisors (see below), whose sum is σ = 187373703. Its totient is φ = 21386592.

The previous prime is 64448777. The next prime is 64448801. The reversal of 64448784 is 48784446.

The square root of 64448784 is 8028.

It is a perfect power (a square), and thus also a powerful number.

64448784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 14 ways as a sum of consecutive naturals, for example, 288897 + ... + 289119.

Almost surely, 2^64448784 is an apocalyptic number.

64448784 is the 8028-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64448784

64448784 is an abundant number, since it is smaller than the sum of its proper divisors (122924919).

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

64448784 is an equidigital number, since it uses as much as digits as its factorization.

64448784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 228 counting only the distinct ones).

The product of its digits is 688128, while the sum is 45.

The cubic root of 64448784 is about 400.9327897341.

The spelling of 64448784 in words is "sixty-four million, four hundred forty-eight thousand, seven hundred eighty-four".