328447 has 6 divisors (see below), whose sum is σ = 382128. Its totient is φ = 281484.

The previous prime is 328439. The next prime is 328481. The reversal of 328447 is 744823.

It is not a de Polignac number, because 328447 - 2³ = 328439 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3303 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (63688).

2³²⁸⁴⁴⁷ is an apocalyptic number.

328447 is a deficient number, since it is larger than the sum of its proper divisors (53681).

328447 is an equidigital number, since it uses as much as digits as its factorization.

328447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717 (or 6710 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 328447 is about 573.1029575914. The cubic root of 328447 is about 68.9956589021.

The spelling of 328447 in words is "three hundred twenty-eight thousand, four hundred forty-seven".