708671664 has 60 divisors (see below), whose sum is σ = 1994830656. Its totient is φ = 234850176.

The previous prime is 708671641. The next prime is 708671669. The reversal of 708671664 is 466176807.

708671664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (708671669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10689 + ... + 39135.

Almost surely, 2^708671664 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 708671664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997415328).

708671664 is an abundant number, since it is smaller than the sum of its proper divisors (1286158992).

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

708671664 is a wasteful number, since it uses less digits than its factorization.

708671664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28634 (or 28625 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 708671664 is about 26620.8877387663. The cubic root of 708671664 is about 891.5554435158. Note that the first 3 decimals are identical.

The spelling of 708671664 in words is "seven hundred eight million, six hundred seventy-one thousand, six hundred sixty-four".