328457 has 6 divisors (see below), whose sum is σ = 350298. Its totient is φ = 306912.

The previous prime is 328439. The next prime is 328481. The reversal of 328457 is 754823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 19321 = 556^2 + 139^2 .

It is not a de Polignac number, because 328457 - 2¹⁰ = 327433 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 2¹⁸ + 4⁸ + 8² + 5⁴ + 7 .

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328457.

It is not an unprimeable number, because it can be changed into a prime (328357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2294 + ... + 2432.

It is an arithmetic number, because the mean of its divisors is an integer number (58383).

2³²⁸⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

328457 is a deficient number, since it is larger than the sum of its proper divisors (21841).

328457 is an equidigital number, since it uses as much as digits as its factorization.

328457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 156 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 328457 is about 573.1116819609. Note that the first 3 decimals coincide. The cubic root of 328457 is about 68.9963591162.

The spelling of 328457 in words is "three hundred twenty-eight thousand, four hundred fifty-seven".