9879321 has 8 divisors (see below), whose sum is σ = 13210560. Its totient is φ = 6567152.

The previous prime is 9879299. The next prime is 9879323. The reversal of 9879321 is 1239789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9879321 - 2⁶ = 9879257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9879321.

It is not an unprimeable number, because it can be changed into a prime (9879323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3510 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (1651320).

Almost surely, 2^9879321 is an apocalyptic number.

It is an amenable number.

9879321 is a deficient number, since it is larger than the sum of its proper divisors (3331239).

9879321 is a wasteful number, since it uses less digits than its factorization.

9879321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535.

The product of its digits is 27216, while the sum is 39.

The square root of 9879321 is about 3143.1387179060. The cubic root of 9879321 is about 214.5733091452.

The spelling of 9879321 in words is "nine million, eight hundred seventy-nine thousand, three hundred twenty-one".