328433783 has 4 divisors (see below), whose sum is σ = 328579680. Its totient is φ = 328287888.

The previous prime is 328433773. The next prime is 328433801. The reversal of 328433783 is 387334823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387334823 = 59 ⋅6564997.

It is a cyclic number.

It is not a de Polignac number, because 328433783 - 2¹⁸ = 328171639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328433783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328433713) 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, 69518 + ... + 74091.

It is an arithmetic number, because the mean of its divisors is an integer number (82144920).

Almost surely, 2^328433783 is an apocalyptic number.

328433783 is a deficient number, since it is larger than the sum of its proper divisors (145897).

328433783 is a wasteful number, since it uses less digits than its factorization.

328433783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145896.

The product of its digits is 290304, while the sum is 41.

The square root of 328433783 is about 18122.7421490237. The cubic root of 328433783 is about 689.9473340745.

The spelling of 328433783 in words is "three hundred twenty-eight million, four hundred thirty-three thousand, seven hundred eighty-three".