321479 has 4 divisors (see below), whose sum is σ = 323760. Its totient is φ = 319200.

The previous prime is 321469. The next prime is 321509. The reversal of 321479 is 974123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321479.

It is not an unprimeable number, because it can be changed into a prime (321449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914 + ... + 1215.

It is an arithmetic number, because the mean of its divisors is an integer number (80940).

321479 is a Friedman number, since it can be written as (7*3^4)^2-9-1, using all its digits and the basic arithmetic operations.

2³²¹⁴⁷⁹ is an apocalyptic number.

321479 is a deficient number, since it is larger than the sum of its proper divisors (2281).

321479 is a wasteful number, since it uses less digits than its factorization.

321479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280.

The product of its digits is 1512, while the sum is 26.

The square root of 321479 is about 566.9911815893. The cubic root of 321479 is about 68.5042532035.

The spelling of 321479 in words is "three hundred twenty-one thousand, four hundred seventy-nine".