979321 has 8 divisors (see below), whose sum is σ = 1155584. Its totient is φ = 812160.

The previous prime is 979313. The next prime is 979327. The reversal of 979321 is 123979.

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 979321 - 2³ = 979313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979327) by changing a digit.

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, 2040 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (144448).

2⁹⁷⁹³²¹ is an apocalyptic number.

It is an amenable number.

979321 is a deficient number, since it is larger than the sum of its proper divisors (176263).

979321 is a wasteful number, since it uses less digits than its factorization.

979321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551.

The product of its digits is 3402, while the sum is 31.

The square root of 979321 is about 989.6064874484. The cubic root of 979321 is about 99.3058933060.

The spelling of 979321 in words is "nine hundred seventy-nine thousand, three hundred twenty-one".