328705207 has 8 divisors (see below), whose sum is σ = 333072432. Its totient is φ = 324360000.

The previous prime is 328705193. The next prime is 328705211. The reversal of 328705207 is 702507823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328705207 is a prime.

It is a super-2 number, since 2×328705207² = 216094226217825698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328705277) 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 7 ways as a sum of consecutive naturals, for example, 25707 + ... + 36307.

It is an arithmetic number, because the mean of its divisors is an integer number (41634054).

Almost surely, 2^328705207 is an apocalyptic number.

328705207 is a deficient number, since it is larger than the sum of its proper divisors (4367225).

328705207 is a wasteful number, since it uses less digits than its factorization.

328705207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 328705207 is about 18130.2290939745. The cubic root of 328705207 is about 690.1373436606.

The spelling of 328705207 in words is "three hundred twenty-eight million, seven hundred five thousand, two hundred seven".