11727889 has 8 divisors (see below), whose sum is σ = 12227072. Its totient is φ = 11236320.

The previous prime is 11727887. The next prime is 11727899. The reversal of 11727889 is 98872711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11727889 - 2¹ = 11727887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11727887) 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 7 ways as a sum of consecutive naturals, for example, 1357 + ... + 5029.

It is an arithmetic number, because the mean of its divisors is an integer number (1528384).

Almost surely, 2^11727889 is an apocalyptic number.

It is an amenable number.

11727889 is a deficient number, since it is larger than the sum of its proper divisors (499183).

11727889 is a wasteful number, since it uses less digits than its factorization.

11727889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807.

The product of its digits is 56448, while the sum is 43.

The square root of 11727889 is about 3424.6005606494. The cubic root of 11727889 is about 227.1991046818.

The spelling of 11727889 in words is "eleven million, seven hundred twenty-seven thousand, eight hundred eighty-nine".