13798513 has 2 divisors, whose sum is σ = 13798514. Its totient is φ = 13798512.

The previous prime is 13798511. The next prime is 13798523. The reversal of 13798513 is 31589731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7306209 + 6492304 = 2703^2 + 2548^2 .

It is an emirp because it is prime and its reverse (31589731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13798513 - 2¹ = 13798511 is a prime.

It is a super-2 number, since 2×13798513² = 380797922022338, which contains 22 as substring.

Together with 13798511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13798511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6899256 + 6899257.

It is an arithmetic number, because the mean of its divisors is an integer number (6899257).

Almost surely, 2^13798513 is an apocalyptic number.

It is an amenable number.

13798513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13798513 is an equidigital number, since it uses as much as digits as its factorization.

13798513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 13798513 is about 3714.6349753374. The cubic root of 13798513 is about 239.8524150502.

The spelling of 13798513 in words is "thirteen million, seven hundred ninety-eight thousand, five hundred thirteen".