64812064 has 12 divisors (see below), whose sum is σ = 127598814. Its totient is φ = 32406016.

The previous prime is 64812023. The next prime is 64812067. The reversal of 64812064 is 46021846.

64812064 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., 50523664 + 14288400 = 7108^2 + 3780^2 .

It is not an unprimeable number, because it can be changed into a prime (64812067) 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 as a sum of consecutive naturals, namely, 1012657 + ... + 1012720.

Almost surely, 2^64812064 is an apocalyptic number.

It is an amenable number.

64812064 is a deficient number, since it is larger than the sum of its proper divisors (62786750).

64812064 is a wasteful number, since it uses less digits than its factorization.

64812064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025387 (or 2025379 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 64812064 is about 8050.5940153507. The cubic root of 64812064 is about 401.6846945492.

The spelling of 64812064 in words is "sixty-four million, eight hundred twelve thousand, sixty-four".