328316657 has 2 divisors, whose sum is σ = 328316658. Its totient is φ = 328316656.

The previous prime is 328316647. The next prime is 328316663. The reversal of 328316657 is 756613823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328298161 + 18496 = 18119^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 328316657 - 2¹² = 328312561 is a prime.

It is not a weakly prime, because it can be changed into another prime (328316617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164158328 + 164158329.

It is an arithmetic number, because the mean of its divisors is an integer number (164158329).

Almost surely, 2^328316657 is an apocalyptic number.

It is an amenable number.

328316657 is a deficient number, since it is larger than the sum of its proper divisors (1).

328316657 is an equidigital number, since it uses as much as digits as its factorization.

328316657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 328316657 is about 18119.5103962552. The cubic root of 328316657 is about 689.8653080226.

The spelling of 328316657 in words is "three hundred twenty-eight million, three hundred sixteen thousand, six hundred fifty-seven".