11312889 has 8 divisors (see below), whose sum is σ = 17238720. Its totient is φ = 6464496.

The previous prime is 11312887. The next prime is 11312893. The reversal of 11312889 is 98821311.

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

It is not a de Polignac number, because 11312889 - 2¹ = 11312887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11312881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269334 + ... + 269375.

It is an arithmetic number, because the mean of its divisors is an integer number (2154840).

Almost surely, 2^11312889 is an apocalyptic number.

It is an amenable number.

11312889 is a deficient number, since it is larger than the sum of its proper divisors (5925831).

11312889 is an equidigital number, since it uses as much as digits as its factorization.

11312889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538719.

The product of its digits is 3456, while the sum is 33.

The square root of 11312889 is about 3363.4638395559. The cubic root of 11312889 is about 224.4869892245.

The spelling of 11312889 in words is "eleven million, three hundred twelve thousand, eight hundred eighty-nine".