328268557 has 2 divisors, whose sum is σ = 328268558. Its totient is φ = 328268556.

The previous prime is 328268543. The next prime is 328268561. The reversal of 328268557 is 755862823.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281769796 + 46498761 = 16786^2 + 6819^2 .

It is a cyclic number.

It is not a de Polignac number, because 328268557 - 2¹⁹ = 327744269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328268527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164134278 + 164134279.

It is an arithmetic number, because the mean of its divisors is an integer number (164134279).

Almost surely, 2^328268557 is an apocalyptic number.

It is an amenable number.

328268557 is a deficient number, since it is larger than the sum of its proper divisors (1).

328268557 is an equidigital number, since it uses as much as digits as its factorization.

328268557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 328268557 is about 18118.1830490808. The cubic root of 328268557 is about 689.8316168272.

The spelling of 328268557 in words is "three hundred twenty-eight million, two hundred sixty-eight thousand, five hundred fifty-seven".