12838493 has 2 divisors, whose sum is σ = 12838494. Its totient is φ = 12838492.

The previous prime is 12838481. The next prime is 12838513. The reversal of 12838493 is 39483821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7941124 + 4897369 = 2818^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 12838493 - 2⁴ = 12838477 is a prime.

It is a super-2 number, since 2×12838493² = 329653805022098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12838193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419246 + 6419247.

It is an arithmetic number, because the mean of its divisors is an integer number (6419247).

Almost surely, 2^12838493 is an apocalyptic number.

It is an amenable number.

12838493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12838493 is an equidigital number, since it uses as much as digits as its factorization.

12838493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 12838493 is about 3583.0842859190. The cubic root of 12838493 is about 234.1556723406.

It can be divided in two parts, 12838 and 493, that added together give a palindrome (13331).

The spelling of 12838493 in words is "twelve million, eight hundred thirty-eight thousand, four hundred ninety-three".