328171507 has 2 divisors, whose sum is σ = 328171508. Its totient is φ = 328171506.

The previous prime is 328171499. The next prime is 328171513. The reversal of 328171507 is 705171823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328171507 - 2³ = 328171499 is a prime.

It is not a weakly prime, because it can be changed into another prime (328171577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164085753 + 164085754.

It is an arithmetic number, because the mean of its divisors is an integer number (164085754).

Almost surely, 2^328171507 is an apocalyptic number.

328171507 is a deficient number, since it is larger than the sum of its proper divisors (1).

328171507 is an equidigital number, since it uses as much as digits as its factorization.

328171507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 328171507 is about 18115.5046024117. The cubic root of 328171507 is about 689.7636290413.

The spelling of 328171507 in words is "three hundred twenty-eight million, one hundred seventy-one thousand, five hundred seven".