328461 has 8 divisors (see below), whose sum is σ = 500544. Its totient is φ = 187680.

The previous prime is 328439. The next prime is 328481. The reversal of 328461 is 164823.

It is a happy number.

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

It is not a de Polignac number, because 328461 - 2⁵ = 328429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7800 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (62568).

2³²⁸⁴⁶¹ is an apocalyptic number.

It is an amenable number.

328461 is a deficient number, since it is larger than the sum of its proper divisors (172083).

328461 is a wasteful number, since it uses less digits than its factorization.

328461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15651.

The product of its digits is 1152, while the sum is 24.

The square root of 328461 is about 573.1151716715. The cubic root of 328461 is about 68.9966391978.

The spelling of 328461 in words is "three hundred twenty-eight thousand, four hundred sixty-one".