321797112 has 256 divisors, whose sum is σ = 1053696000. Its totient is φ = 81285120.

The previous prime is 321797107. The next prime is 321797123. The reversal of 321797112 is 211797123.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3317448 + ... + 3317544.

It is an arithmetic number, because the mean of its divisors is an integer number (4116000).

Almost surely, 2^321797112 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 321797112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526848000).

321797112 is an abundant number, since it is smaller than the sum of its proper divisors (731898888).

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

321797112 is a wasteful number, since it uses less digits than its factorization.

321797112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 153 counting only the distinct ones).

The product of its digits is 5292, while the sum is 33.

The square root of 321797112 is about 17938.7043010358. The cubic root of 321797112 is about 685.2684134666.

The spelling of 321797112 in words is "three hundred twenty-one million, seven hundred ninety-seven thousand, one hundred twelve".