11889169 has 4 divisors (see below), whose sum is σ = 12032496. Its totient is φ = 11745844.

The previous prime is 11889121. The next prime is 11889179. The reversal of 11889169 is 96198811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96198811 = 23 ⋅4182557.

It is a cyclic number.

It is not a de Polignac number, because 11889169 - 2¹¹ = 11887121 is a prime.

It is a super-2 number, since 2×11889169² = 282704679021122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11889179) 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 3 ways as a sum of consecutive naturals, for example, 71539 + ... + 71704.

It is an arithmetic number, because the mean of its divisors is an integer number (3008124).

Almost surely, 2^11889169 is an apocalyptic number.

It is an amenable number.

11889169 is a deficient number, since it is larger than the sum of its proper divisors (143327).

11889169 is an equidigital number, since it uses as much as digits as its factorization.

11889169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143326.

The product of its digits is 31104, while the sum is 43.

The square root of 11889169 is about 3448.0674297351. The cubic root of 11889169 is about 228.2358350266.

The spelling of 11889169 in words is "eleven million, eight hundred eighty-nine thousand, one hundred sixty-nine".