964021568 has 56 divisors (see below), whose sum is σ = 1942322760. Its totient is φ = 474675200.

The previous prime is 964021549. The next prime is 964021607. The reversal of 964021568 is 865120469.

It is a happy number.

964021568 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 4 ways, for example, as 788935744 + 175085824 = 28088^2 + 13232^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893698 + ... + 1894206.

It is an arithmetic number, because the mean of its divisors is an integer number (34684335).

Almost surely, 2^964021568 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 964021568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971161380).

964021568 is an abundant number, since it is smaller than the sum of its proper divisors (978301192).

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

964021568 is a wasteful number, since it uses less digits than its factorization.

964021568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 964021568 is about 31048.6967198303. The cubic root of 964021568 is about 987.8604161726.

The spelling of 964021568 in words is "nine hundred sixty-four million, twenty-one thousand, five hundred sixty-eight".