328359421 has 4 divisors (see below), whose sum is σ = 353617852. Its totient is φ = 303100992.

The previous prime is 328359419. The next prime is 328359443. The reversal of 328359421 is 124953823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66243321 + 262116100 = 8139^2 + 16190^2 .

It is a cyclic number.

It is not a de Polignac number, because 328359421 - 2¹ = 328359419 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 (328359821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12629196 + ... + 12629221.

It is an arithmetic number, because the mean of its divisors is an integer number (88404463).

Almost surely, 2^328359421 is an apocalyptic number.

It is an amenable number.

328359421 is a deficient number, since it is larger than the sum of its proper divisors (25258431).

328359421 is a wasteful number, since it uses less digits than its factorization.

328359421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25258430.

The product of its digits is 51840, while the sum is 37.

The square root of 328359421 is about 18120.6904117917. The cubic root of 328359421 is about 689.8952589035.

The spelling of 328359421 in words is "three hundred twenty-eight million, three hundred fifty-nine thousand, four hundred twenty-one".