328765733 has 4 divisors (see below), whose sum is σ = 332459820. Its totient is φ = 325071648.

The previous prime is 328765699. The next prime is 328765741. The reversal of 328765733 is 337567823.

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 94614529 + 234151204 = 9727^2 + 15302^2 .

It is a cyclic number.

It is not a de Polignac number, because 328765733 - 2¹² = 328761637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328765753) 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, 1846910 + ... + 1847087.

It is an arithmetic number, because the mean of its divisors is an integer number (83114955).

Almost surely, 2^328765733 is an apocalyptic number.

It is an amenable number.

328765733 is a deficient number, since it is larger than the sum of its proper divisors (3694087).

328765733 is an equidigital number, since it uses as much as digits as its factorization.

328765733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694086.

The product of its digits is 635040, while the sum is 44.

The square root of 328765733 is about 18131.8982183333. The cubic root of 328765733 is about 690.1797004476.

The spelling of 328765733 in words is "three hundred twenty-eight million, seven hundred sixty-five thousand, seven hundred thirty-three".