11667489 has 4 divisors (see below), whose sum is σ = 15556656. Its totient is φ = 7778324.

The previous prime is 11667443. The next prime is 11667503. The reversal of 11667489 is 98476611.

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.

It is a cyclic number.

It is not a de Polignac number, because 11667489 - 2⁷ = 11667361 is a prime.

It is a super-2 number, since 2×11667489² = 272260599130242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11667489.

It is not an unprimeable number, because it can be changed into a prime (11667289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944579 + ... + 1944584.

It is an arithmetic number, because the mean of its divisors is an integer number (3889164).

Almost surely, 2^11667489 is an apocalyptic number.

It is an amenable number.

11667489 is a deficient number, since it is larger than the sum of its proper divisors (3889167).

11667489 is an equidigital number, since it uses as much as digits as its factorization.

11667489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889166.

The product of its digits is 72576, while the sum is 42.

The square root of 11667489 is about 3415.7706304727. The cubic root of 11667489 is about 226.8083991987.

The spelling of 11667489 in words is "eleven million, six hundred sixty-seven thousand, four hundred eighty-nine".