328556117 has 2 divisors, whose sum is σ = 328556118. Its totient is φ = 328556116.

The previous prime is 328556101. The next prime is 328556119. The reversal of 328556117 is 711655823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193043236 + 135512881 = 13894^2 + 11641^2 .

It is a cyclic number.

It is not a de Polignac number, because 328556117 - 2⁴ = 328556101 is a prime.

Together with 328556119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328556119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164278058 + 164278059.

It is an arithmetic number, because the mean of its divisors is an integer number (164278059).

Almost surely, 2^328556117 is an apocalyptic number.

It is an amenable number.

328556117 is a deficient number, since it is larger than the sum of its proper divisors (1).

328556117 is an equidigital number, since it uses as much as digits as its factorization.

328556117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 328556117 is about 18126.1169862715. The cubic root of 328556117 is about 690.0329865907.

The spelling of 328556117 in words is "three hundred twenty-eight million, five hundred fifty-six thousand, one hundred seventeen".