328666743 has 12 divisors (see below), whose sum is σ = 490055488. Its totient is φ = 212042880.

The previous prime is 328666721. The next prime is 328666747. The reversal of 328666743 is 347666823.

It is not a de Polignac number, because 328666743 - 2⁸ = 328666487 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 (328666747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588730 + ... + 589287.

Almost surely, 2^328666743 is an apocalyptic number.

328666743 is a deficient number, since it is larger than the sum of its proper divisors (161388745).

328666743 is a wasteful number, since it uses less digits than its factorization.

328666743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178054 (or 1178051 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 328666743 is about 18129.1682931126. The cubic root of 328666743 is about 690.1104234114.

The spelling of 328666743 in words is "three hundred twenty-eight million, six hundred sixty-six thousand, seven hundred forty-three".