328814687 has 4 divisors (see below), whose sum is σ = 328852200. Its totient is φ = 328777176.

The previous prime is 328814653. The next prime is 328814701. The reversal of 328814687 is 786418823.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 786418823 = 53 ⋅14838091.

It is a cyclic number.

It is not a de Polignac number, because 328814687 - 2⁶ = 328814623 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 (328214687) 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, 2189 + ... + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (82213050).

Almost surely, 2^328814687 is an apocalyptic number.

328814687 is a deficient number, since it is larger than the sum of its proper divisors (37513).

328814687 is a wasteful number, since it uses less digits than its factorization.

328814687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37512.

The product of its digits is 516096, while the sum is 47.

The square root of 328814687 is about 18133.2481094811. The cubic root of 328814687 is about 690.2139552140.

The spelling of 328814687 in words is "three hundred twenty-eight million, eight hundred fourteen thousand, six hundred eighty-seven".