328283885 has 4 divisors (see below), whose sum is σ = 393940668. Its totient is φ = 262627104.

The previous prime is 328283873. The next prime is 328283927. The reversal of 328283885 is 588382823.

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 209844196 + 118439689 = 14486^2 + 10883^2 .

It is a cyclic number.

It is not a de Polignac number, because 328283885 - 2¹⁰ = 328282861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32828384 + ... + 32828393.

It is an arithmetic number, because the mean of its divisors is an integer number (98485167).

Almost surely, 2^328283885 is an apocalyptic number.

It is an amenable number.

328283885 is a deficient number, since it is larger than the sum of its proper divisors (65656783).

328283885 is an equidigital number, since it uses as much as digits as its factorization.

328283885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65656782.

The product of its digits is 737280, while the sum is 47.

The square root of 328283885 is about 18118.6060446161. The cubic root of 328283885 is about 689.8423535388.

The spelling of 328283885 in words is "three hundred twenty-eight million, two hundred eighty-three thousand, eight hundred eighty-five".