27328513 has 2 divisors, whose sum is σ = 27328514. Its totient is φ = 27328512.

The previous prime is 27328507. The next prime is 27328523. The reversal of 27328513 is 31582372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16418704 + 10909809 = 4052^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 27328513 - 2⁹ = 27328001 is a prime.

It is not a weakly prime, because it can be changed into another prime (27328523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13664256 + 13664257.

It is an arithmetic number, because the mean of its divisors is an integer number (13664257).

It is a Proth number, since it is equal to 417 ⋅ 2¹⁶ + 1 and 417 < 2¹⁶.

Almost surely, 2^27328513 is an apocalyptic number.

It is an amenable number.

27328513 is a deficient number, since it is larger than the sum of its proper divisors (1).

27328513 is an equidigital number, since it uses as much as digits as its factorization.

27328513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 27328513 is about 5227.6680269504. The cubic root of 27328513 is about 301.2118132527.

The spelling of 27328513 in words is "twenty-seven million, three hundred twenty-eight thousand, five hundred thirteen".