12728363 has 2 divisors, whose sum is σ = 12728364. Its totient is φ = 12728362.

The previous prime is 12728351. The next prime is 12728371. The reversal of 12728363 is 36382721.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36382721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12728363 - 2¹⁶ = 12662827 is a prime.

It is a super-2 number, since 2×12728363² = 324022449319538, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12728063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6364181 + 6364182.

It is an arithmetic number, because the mean of its divisors is an integer number (6364182).

Almost surely, 2^12728363 is an apocalyptic number.

12728363 is a deficient number, since it is larger than the sum of its proper divisors (1).

12728363 is an equidigital number, since it uses as much as digits as its factorization.

12728363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 12728363 is about 3567.6831417602. The cubic root of 12728363 is about 233.4842110354.

It can be divided in two parts, 12728 and 363, that multiplied together give a palindrome (4620264).

The spelling of 12728363 in words is "twelve million, seven hundred twenty-eight thousand, three hundred sixty-three".