64307712 has 80 divisors (see below), whose sum is σ = 195826752. Its totient is φ = 18370560.

The previous prime is 64307689. The next prime is 64307713. The reversal of 64307712 is 21770346.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 64307712.

It is not an unprimeable number, because it can be changed into a prime (64307713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7762 + ... + 13742.

Almost surely, 2^64307712 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 64307712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97913376).

64307712 is an abundant number, since it is smaller than the sum of its proper divisors (131519040).

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

64307712 is an equidigital number, since it uses as much as digits as its factorization.

64307712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 64307712 is about 8019.2089385425. The cubic root of 64307712 is about 400.6400419861.

The spelling of 64307712 in words is "sixty-four million, three hundred seven thousand, seven hundred twelve".