11389489 has 4 divisors (see below), whose sum is σ = 11782260. Its totient is φ = 10996720.

The previous prime is 11389471. The next prime is 11389501. The reversal of 11389489 is 98498311.

11389489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9199089 + 2190400 = 3033^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 11389489 - 2¹⁷ = 11258417 is a prime.

It is a super-2 number, since 2×11389489² = 259440919362242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11389289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196342 + ... + 196399.

It is an arithmetic number, because the mean of its divisors is an integer number (2945565).

Almost surely, 2^11389489 is an apocalyptic number.

It is an amenable number.

11389489 is a deficient number, since it is larger than the sum of its proper divisors (392771).

11389489 is an equidigital number, since it uses as much as digits as its factorization.

11389489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392770.

The product of its digits is 62208, while the sum is 43.

The square root of 11389489 is about 3374.8316995074. The cubic root of 11389489 is about 224.9925199159.

The spelling of 11389489 in words is "eleven million, three hundred eighty-nine thousand, four hundred eighty-nine".