328688061 has 16 divisors (see below), whose sum is σ = 482006784. Its totient is φ = 197964864.

The previous prime is 328688029. The next prime is 328688077. The reversal of 328688061 is 160886823.

It is not a de Polignac number, because 328688061 - 2⁵ = 328688029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328688161) 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 15 ways as a sum of consecutive naturals, for example, 87826 + ... + 91491.

It is an arithmetic number, because the mean of its divisors is an integer number (30125424).

Almost surely, 2^328688061 is an apocalyptic number.

It is an amenable number.

328688061 is a deficient number, since it is larger than the sum of its proper divisors (153318723).

328688061 is a wasteful number, since it uses less digits than its factorization.

328688061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179380.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 328688061 is about 18129.7562311246. The cubic root of 328688061 is about 690.1253437486.

The spelling of 328688061 in words is "three hundred twenty-eight million, six hundred eighty-eight thousand, sixty-one".