11447389 has 2 divisors, whose sum is σ = 11447390. Its totient is φ = 11447388.

The previous prime is 11447377. The next prime is 11447407. The reversal of 11447389 is 98374411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6041764 + 5405625 = 2458^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 11447389 - 2¹⁵ = 11414621 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 (11447369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5723694 + 5723695.

It is an arithmetic number, because the mean of its divisors is an integer number (5723695).

Almost surely, 2^11447389 is an apocalyptic number.

It is an amenable number.

11447389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11447389 is an equidigital number, since it uses as much as digits as its factorization.

11447389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 11447389 is about 3383.3990305608. The cubic root of 11447389 is about 225.3731355897.

The spelling of 11447389 in words is "eleven million, four hundred forty-seven thousand, three hundred eighty-nine".