11897449 has 2 divisors, whose sum is σ = 11897450. Its totient is φ = 11897448.

The previous prime is 11897423. The next prime is 11897471. The reversal of 11897449 is 94479811.

11897449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 2088025 = 3132^2 + 1445^2 .

It is an emirp because it is prime and its reverse (94479811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11897449 - 2¹³ = 11889257 is a prime.

It is not a weakly prime, because it can be changed into another prime (11897419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5948724 + 5948725.

It is an arithmetic number, because the mean of its divisors is an integer number (5948725).

Almost surely, 2^11897449 is an apocalyptic number.

It is an amenable number.

11897449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11897449 is an equidigital number, since it uses as much as digits as its factorization.

11897449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 11897449 is about 3449.2678933362. The cubic root of 11897449 is about 228.2888063256.

The spelling of 11897449 in words is "eleven million, eight hundred ninety-seven thousand, four hundred forty-nine".