11489611 has 4 divisors (see below), whose sum is σ = 13130992. Its totient is φ = 9848232.

The previous prime is 11489609. The next prime is 11489641. The reversal of 11489611 is 11698411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11698411 = 347 ⋅33713.

It is a cyclic number.

It is not a de Polignac number, because 11489611 - 2¹ = 11489609 is a prime.

It is a super-2 number, since 2×11489611² = 264022321862642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11489641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820680 + ... + 820693.

It is an arithmetic number, because the mean of its divisors is an integer number (3282748).

Almost surely, 2^11489611 is an apocalyptic number.

11489611 is a deficient number, since it is larger than the sum of its proper divisors (1641381).

11489611 is an equidigital number, since it uses as much as digits as its factorization.

11489611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641380.

The product of its digits is 1728, while the sum is 31.

The square root of 11489611 is about 3389.6328709759. The cubic root of 11489611 is about 225.6498807746.

It can be divided in two parts, 11489 and 611, that added together give a square (12100 = 110²).

The spelling of 11489611 in words is "eleven million, four hundred eighty-nine thousand, six hundred eleven".