328256117 has 16 divisors (see below), whose sum is σ = 393830400. Its totient is φ = 267660720.

The previous prime is 328256099. The next prime is 328256129. The reversal of 328256117 is 711652823.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 328256117 - 2⁶ = 328256053 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 (328256147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17 + ... + 25622.

It is an arithmetic number, because the mean of its divisors is an integer number (24614400).

Almost surely, 2^328256117 is an apocalyptic number.

It is an amenable number.

328256117 is a deficient number, since it is larger than the sum of its proper divisors (65574283).

328256117 is a wasteful number, since it uses less digits than its factorization.

328256117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25736.

The product of its digits is 20160, while the sum is 35.

The square root of 328256117 is about 18117.8397442962. The cubic root of 328256117 is about 689.8229028098.

The spelling of 328256117 in words is "three hundred twenty-eight million, two hundred fifty-six thousand, one hundred seventeen".