321797132 has 24 divisors (see below), whose sum is σ = 579380256. Its totient is φ = 156319488.

The previous prime is 321797123. The next prime is 321797149. The reversal of 321797132 is 231797123.

It is a junction number, because it is equal to n+sod(n) for n = 321797092 and 321797101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14468 + ... + 29204.

It is an arithmetic number, because the mean of its divisors is an integer number (24140844).

Almost surely, 2^321797132 is an apocalyptic number.

It is an amenable number.

321797132 is a deficient number, since it is larger than the sum of its proper divisors (257583124).

321797132 is a wasteful number, since it uses less digits than its factorization.

321797132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14897 (or 14895 counting only the distinct ones).

The product of its digits is 15876, while the sum is 35.

The square root of 321797132 is about 17938.7048584896. The cubic root of 321797132 is about 685.2684276633.

Subtracting from 321797132 its reverse (231797123), we obtain a palindrome (90000009).

The spelling of 321797132 in words is "three hundred twenty-one million, seven hundred ninety-seven thousand, one hundred thirty-two".