321479081 has 8 divisors (see below), whose sum is σ = 400805184. Its totient is φ = 250503120.

The previous prime is 321479077. The next prime is 321479099. The reversal of 321479081 is 180974123.

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

It is not a de Polignac number, because 321479081 - 2² = 321479077 is a prime.

It is a super-2 number, since 2×321479081² = 206697599041209122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321479581) 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, 2087450 + ... + 2087603.

It is an arithmetic number, because the mean of its divisors is an integer number (50100648).

Almost surely, 2^321479081 is an apocalyptic number.

It is an amenable number.

321479081 is a deficient number, since it is larger than the sum of its proper divisors (79326103).

321479081 is a wasteful number, since it uses less digits than its factorization.

321479081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175071.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 321479081 is about 17929.8377293271. The cubic root of 321479081 is about 685.0425895696.

The spelling of 321479081 in words is "three hundred twenty-one million, four hundred seventy-nine thousand, eighty-one".