13828247 has 2 divisors, whose sum is σ = 13828248. Its totient is φ = 13828246.

The previous prime is 13828211. The next prime is 13828253. The reversal of 13828247 is 74282831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13828247 - 2⁶ = 13828183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13828207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6914123 + 6914124.

It is an arithmetic number, because the mean of its divisors is an integer number (6914124).

Almost surely, 2^13828247 is an apocalyptic number.

13828247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13828247 is an equidigital number, since it uses as much as digits as its factorization.

13828247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 13828247 is about 3718.6350990652. The cubic root of 13828247 is about 240.0245750298.

It can be divided in two parts, 1382824 and 7, that added together give a palindrome (1382831).

The spelling of 13828247 in words is "thirteen million, eight hundred twenty-eight thousand, two hundred forty-seven".