64709216 has 96 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 26657280.

The previous prime is 64709209. The next prime is 64709219. The reversal of 64709216 is 61290746.

64709216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64709219) 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 15 ways as a sum of consecutive naturals, for example, 361415 + ... + 361593.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^64709216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64709216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76204800).

64709216 is an abundant number, since it is smaller than the sum of its proper divisors (87700384).

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

64709216 is a wasteful number, since it uses less digits than its factorization.

64709216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 64709216 is about 8044.2038760837. The cubic root of 64709216 is about 401.4721089253.

The spelling of 64709216 in words is "sixty-four million, seven hundred nine thousand, two hundred sixteen".