11487187 has 4 divisors (see below), whose sum is σ = 11499480. Its totient is φ = 11474896.

The previous prime is 11487181. The next prime is 11487193. The reversal of 11487187 is 78178411.

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

It is an interprime number because it is at equal distance from previous prime (11487181) and next prime (11487193).

It is a cyclic number.

It is not a de Polignac number, because 11487187 - 2¹⁵ = 11454419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11487181) 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, 4618 + ... + 6655.

It is an arithmetic number, because the mean of its divisors is an integer number (2874870).

Almost surely, 2^11487187 is an apocalyptic number.

11487187 is a deficient number, since it is larger than the sum of its proper divisors (12293).

11487187 is a wasteful number, since it uses less digits than its factorization.

11487187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12292.

The product of its digits is 12544, while the sum is 37.

The square root of 11487187 is about 3389.2752912680. The cubic root of 11487187 is about 225.6340109660.

The spelling of 11487187 in words is "eleven million, four hundred eighty-seven thousand, one hundred eighty-seven".