64106647 has 6 divisors (see below), whose sum is σ = 70464464. Its totient is φ = 58278660.

The previous prime is 64106641. The next prime is 64106663. The reversal of 64106647 is 74660146.

It is a happy number.

64106647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64106647 - 2³ = 64106639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64106641) 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 5 ways as a sum of consecutive naturals, for example, 264783 + ... + 265024.

Almost surely, 2^64106647 is an apocalyptic number.

64106647 is a deficient number, since it is larger than the sum of its proper divisors (6357817).

64106647 is a wasteful number, since it uses less digits than its factorization.

64106647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529829 (or 529818 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 64106647 is about 8006.6626630576. The cubic root of 64106647 is about 400.2220579529. Note that the first 3 decimals are identical.

The spelling of 64106647 in words is "sixty-four million, one hundred six thousand, six hundred forty-seven".