11187479 has 6 divisors (see below), whose sum is σ = 11884584. Its totient is φ = 10529120.

The previous prime is 11187419. The next prime is 11187503. The reversal of 11187479 is 97478111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11187479 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 (11187419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19067 + ... + 19644.

It is an arithmetic number, because the mean of its divisors is an integer number (1980764).

Almost surely, 2^11187479 is an apocalyptic number.

11187479 is a deficient number, since it is larger than the sum of its proper divisors (697105).

11187479 is an equidigital number, since it uses as much as digits as its factorization.

11187479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38745 (or 38728 counting only the distinct ones).

The product of its digits is 14112, while the sum is 38.

The square root of 11187479 is about 3344.7689008361. The cubic root of 11187479 is about 223.6543817066.

The spelling of 11187479 in words is "eleven million, one hundred eighty-seven thousand, four hundred seventy-nine".