328618897 has 2 divisors, whose sum is σ = 328618898. Its totient is φ = 328618896.

The previous prime is 328618861. The next prime is 328618919. The reversal of 328618897 is 798816823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287607681 + 41011216 = 16959^2 + 6404^2 .

It is a cyclic number.

It is not a de Polignac number, because 328618897 - 2⁷ = 328618769 is a prime.

It is not a weakly prime, because it can be changed into another prime (328618837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164309448 + 164309449.

It is an arithmetic number, because the mean of its divisors is an integer number (164309449).

Almost surely, 2^328618897 is an apocalyptic number.

It is an amenable number.

328618897 is a deficient number, since it is larger than the sum of its proper divisors (1).

328618897 is an equidigital number, since it uses as much as digits as its factorization.

328618897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 328618897 is about 18127.8486589005. The cubic root of 328618897 is about 690.0769339407.

The spelling of 328618897 in words is "three hundred twenty-eight million, six hundred eighteen thousand, eight hundred ninety-seven".