328335901 has 4 divisors (see below), whose sum is σ = 334530972. Its totient is φ = 322140832.

The previous prime is 328335899. The next prime is 328335919. The reversal of 328335901 is 109533823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109533823 = 7 ⋅15647689.

It can be written as a sum of positive squares in 2 ways, for example, as 106296100 + 222039801 = 10310^2 + 14901^2 .

It is a cyclic number.

It is not a de Polignac number, because 328335901 - 2¹ = 328335899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328335961) 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 3 ways as a sum of consecutive naturals, for example, 3097456 + ... + 3097561.

It is an arithmetic number, because the mean of its divisors is an integer number (83632743).

Almost surely, 2^328335901 is an apocalyptic number.

It is an amenable number.

328335901 is a deficient number, since it is larger than the sum of its proper divisors (6195071).

328335901 is an equidigital number, since it uses as much as digits as its factorization.

328335901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195070.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 328335901 is about 18120.0414182750. The cubic root of 328335901 is about 689.8787863809.

The spelling of 328335901 in words is "three hundred twenty-eight million, three hundred thirty-five thousand, nine hundred one".