3328731457 has 2 divisors, whose sum is σ = 3328731458. Its totient is φ = 3328731456.

The previous prime is 3328731451. The next prime is 3328731499. The reversal of 3328731457 is 7541378233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1717190721 + 1611540736 = 41439^2 + 40144^2 .

It is an emirp because it is prime and its reverse (7541378233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3328731457 is a prime.

It is a super-2 number, since 2×3328731457² = 22160906225642685698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3328731451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664365728 + 1664365729.

It is an arithmetic number, because the mean of its divisors is an integer number (1664365729).

Almost surely, 2^3328731457 is an apocalyptic number.

It is an amenable number.

3328731457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3328731457 is an equidigital number, since it uses as much as digits as its factorization.

3328731457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The square root of 3328731457 is about 57695.1597363245. The cubic root of 3328731457 is about 1493.1138365818.

The spelling of 3328731457 in words is "three billion, three hundred twenty-eight million, seven hundred thirty-one thousand, four hundred fifty-seven".