11404247 has 2 divisors, whose sum is σ = 11404248. Its totient is φ = 11404246.

The previous prime is 11404243. The next prime is 11404259. The reversal of 11404247 is 74240411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11404247 - 2² = 11404243 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 (11404241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702123 + 5702124.

It is an arithmetic number, because the mean of its divisors is an integer number (5702124).

Almost surely, 2^11404247 is an apocalyptic number.

11404247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11404247 is an equidigital number, since it uses as much as digits as its factorization.

11404247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 11404247 is about 3377.0174710830. The cubic root of 11404247 is about 225.0896564506.

Adding to 11404247 its reverse (74240411), we get a palindrome (85644658).

The spelling of 11404247 in words is "eleven million, four hundred four thousand, two hundred forty-seven".