328051637 has 2 divisors, whose sum is σ = 328051638. Its totient is φ = 328051636.

The previous prime is 328051519. The next prime is 328051649. The reversal of 328051637 is 736150823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253159921 + 74891716 = 15911^2 + 8654^2 .

It is an emirp because it is prime and its reverse (736150823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328051637 - 2¹² = 328047541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328051597 and 328051606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328051667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164025818 + 164025819.

It is an arithmetic number, because the mean of its divisors is an integer number (164025819).

Almost surely, 2^328051637 is an apocalyptic number.

It is an amenable number.

328051637 is a deficient number, since it is larger than the sum of its proper divisors (1).

328051637 is an equidigital number, since it uses as much as digits as its factorization.

328051637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 328051637 is about 18112.1958083497. The cubic root of 328051637 is about 689.6796363389.

The spelling of 328051637 in words is "three hundred twenty-eight million, fifty-one thousand, six hundred thirty-seven".