11489811 has 16 divisors (see below), whose sum is σ = 16174080. Its totient is φ = 7240640.

The previous prime is 11489789. The next prime is 11489827. The reversal of 11489811 is 11898411.

11489811 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11489811 - 2¹³ = 11481619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11489911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5206 + ... + 7076.

It is an arithmetic number, because the mean of its divisors is an integer number (1010880).

Almost surely, 2^11489811 is an apocalyptic number.

11489811 is a deficient number, since it is larger than the sum of its proper divisors (4684269).

11489811 is a wasteful number, since it uses less digits than its factorization.

11489811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986.

The product of its digits is 2304, while the sum is 33.

The square root of 11489811 is about 3389.6623725675. The cubic root of 11489811 is about 225.6511900650.

The spelling of 11489811 in words is "eleven million, four hundred eighty-nine thousand, eight hundred eleven".