964321056 has 72 divisors (see below), whose sum is σ = 2903613804. Its totient is φ = 302530560.

The previous prime is 964321051. The next prime is 964321063. The reversal of 964321056 is 650123469.

It is a happy number.

964321056 is a `hidden beast` number, since 9 + 643 + 2 + 1 + 0 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 954810000 + 9511056 = 30900^2 + 3084^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 964321056.

It is not an unprimeable number, because it can be changed into a prime (964321051) 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, 93585 + ... + 103376.

Almost surely, 2^964321056 is an apocalyptic number.

964321056 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

964321056 is an abundant number, since it is smaller than the sum of its proper divisors (1939292748).

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

964321056 is a wasteful number, since it uses less digits than its factorization.

964321056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196994 (or 196983 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 964321056 is about 31053.5192208548. The cubic root of 964321056 is about 987.9627035482.

The spelling of 964321056 in words is "nine hundred sixty-four million, three hundred twenty-one thousand, fifty-six".