11478589 has 4 divisors (see below), whose sum is σ = 11526460. Its totient is φ = 11430720.

The previous prime is 11478583. The next prime is 11478601. The reversal of 11478589 is 98587411.

It is a happy number.

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 6416089 + 5062500 = 2533^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 11478589 - 2¹⁵ = 11445821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478583) 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, 23574 + ... + 24055.

It is an arithmetic number, because the mean of its divisors is an integer number (2881615).

Almost surely, 2^11478589 is an apocalyptic number.

It is an amenable number.

11478589 is a deficient number, since it is larger than the sum of its proper divisors (47871).

11478589 is an equidigital number, since it uses as much as digits as its factorization.

11478589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47870.

The product of its digits is 80640, while the sum is 43.

The square root of 11478589 is about 3388.0066410797. The cubic root of 11478589 is about 225.5777022733.

The spelling of 11478589 in words is "eleven million, four hundred seventy-eight thousand, five hundred eighty-nine".