321016968 has 24 divisors (see below), whose sum is σ = 869421150. Its totient is φ = 107005632.

The previous prime is 321016961. The next prime is 321016981. The reversal of 321016968 is 869610123.

It can be written as a sum of positive squares in only one way, i.e., 304223364 + 16793604 = 17442^2 + 4098^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (321016961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2229213 + ... + 2229356.

Almost surely, 2^321016968 is an apocalyptic number.

It is an amenable number.

321016968 is an abundant number, since it is smaller than the sum of its proper divisors (548404182).

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

321016968 is a wasteful number, since it uses less digits than its factorization.

321016968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458581 (or 4458574 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 321016968 is about 17916.9463916148. The cubic root of 321016968 is about 684.7141919535.

The spelling of 321016968 in words is "three hundred twenty-one million, sixteen thousand, nine hundred sixty-eight".