11387449 has 2 divisors, whose sum is σ = 11387450. Its totient is φ = 11387448.

The previous prime is 11387429. The next prime is 11387473. The reversal of 11387449 is 94478311.

11387449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 3367225 = 2832^2 + 1835^2 .

It is an emirp because it is prime and its reverse (94478311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11387449 - 2¹³ = 11379257 is a prime.

It is not a weakly prime, because it can be changed into another prime (11387429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5693724 + 5693725.

It is an arithmetic number, because the mean of its divisors is an integer number (5693725).

Almost surely, 2^11387449 is an apocalyptic number.

It is an amenable number.

11387449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11387449 is an equidigital number, since it uses as much as digits as its factorization.

11387449 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 11387449 is about 3374.5294486787. The cubic root of 11387449 is about 224.9790861219.

The spelling of 11387449 in words is "eleven million, three hundred eighty-seven thousand, four hundred forty-nine".