17428513 has 2 divisors, whose sum is σ = 17428514. Its totient is φ = 17428512.

The previous prime is 17428511. The next prime is 17428561. The reversal of 17428513 is 31582471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 388129 = 4128^2 + 623^2 .

It is an emirp because it is prime and its reverse (31582471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17428513 - 2¹ = 17428511 is a prime.

Together with 17428511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (17428511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8714256 + 8714257.

It is an arithmetic number, because the mean of its divisors is an integer number (8714257).

Almost surely, 2^17428513 is an apocalyptic number.

It is an amenable number.

17428513 is a deficient number, since it is larger than the sum of its proper divisors (1).

17428513 is an equidigital number, since it uses as much as digits as its factorization.

17428513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 17428513 is about 4174.7470582060. The cubic root of 17428513 is about 259.2707027902.

The spelling of 17428513 in words is "seventeen million, four hundred twenty-eight thousand, five hundred thirteen".