326447 has 8 divisors (see below), whose sum is σ = 362880. Its totient is φ = 291160.

The previous prime is 326441. The next prime is 326449. The reversal of 326447 is 744623.

It is a happy number.

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 326447 - 2¹² = 322351 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

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 326447.

It is not an unprimeable number, because it can be changed into a prime (326441) 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, 398 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

326447 is a Friedman number, since it can be written as (6*4)^4-73^2, using all its digits and the basic arithmetic operations.

2³²⁶⁴⁴⁷ is an apocalyptic number.

326447 is a deficient number, since it is larger than the sum of its proper divisors (36433).

326447 is a wasteful number, since it uses less digits than its factorization.

326447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its digits is 4032, while the sum is 26.

The square root of 326447 is about 571.3554060303. The cubic root of 326447 is about 68.8553294551.

The spelling of 326447 in words is "three hundred twenty-six thousand, four hundred forty-seven".