11487199 has 4 divisors (see below), whose sum is σ = 11594664. Its totient is φ = 11379736.

The previous prime is 11487197. The next prime is 11487209. The reversal of 11487199 is 99178411.

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

It is a cyclic number.

It is not a de Polignac number, because 11487199 - 2¹ = 11487197 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 (11487193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53572 + ... + 53785.

It is an arithmetic number, because the mean of its divisors is an integer number (2898666).

Almost surely, 2^11487199 is an apocalyptic number.

11487199 is a deficient number, since it is larger than the sum of its proper divisors (107465).

11487199 is a wasteful number, since it uses less digits than its factorization.

11487199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107464.

The product of its digits is 18144, while the sum is 40.

The square root of 11487199 is about 3389.2770615575. The cubic root of 11487199 is about 225.6340895349.

The spelling of 11487199 in words is "eleven million, four hundred eighty-seven thousand, one hundred ninety-nine".