328071817 has 2 divisors, whose sum is σ = 328071818. Its totient is φ = 328071816.

The previous prime is 328071773. The next prime is 328071829. The reversal of 328071817 is 718170823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234059401 + 94012416 = 15299^2 + 9696^2 .

It is a cyclic number.

It is not a de Polignac number, because 328071817 - 2²³ = 319683209 is a prime.

It is a super-2 number, since 2×328071817² = 215262234219362978, which contains 22 as substring.

It is a Chen prime.

It is equal to p_17687161 and since 328071817 and 17687161 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (328071017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164035908 + 164035909.

It is an arithmetic number, because the mean of its divisors is an integer number (164035909).

Almost surely, 2^328071817 is an apocalyptic number.

It is an amenable number.

328071817 is a deficient number, since it is larger than the sum of its proper divisors (1).

328071817 is an equidigital number, since it uses as much as digits as its factorization.

328071817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 328071817 is about 18112.7528829828. The cubic root of 328071817 is about 689.6937778623.

The spelling of 328071817 in words is "three hundred twenty-eight million, seventy-one thousand, eight hundred seventeen".