11436489 has 24 divisors (see below), whose sum is σ = 17222400. Its totient is φ = 7305120.

The previous prime is 11436473. The next prime is 11436493. The reversal of 11436489 is 98463411.

11436489 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 648 + 9 = 666.

It is not a de Polignac number, because 11436489 - 2⁴ = 11436473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11436449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49827 + ... + 50055.

It is an arithmetic number, because the mean of its divisors is an integer number (717600).

Almost surely, 2^11436489 is an apocalyptic number.

It is an amenable number.

11436489 is a deficient number, since it is larger than the sum of its proper divisors (5785911).

11436489 is a wasteful number, since it uses less digits than its factorization.

11436489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 442 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 11436489 is about 3381.7878407730. The cubic root of 11436489 is about 225.3015807781.

The spelling of 11436489 in words is "eleven million, four hundred thirty-six thousand, four hundred eighty-nine".