11487647 has 4 divisors (see below), whose sum is σ = 12092280. Its totient is φ = 10883016.

The previous prime is 11487629. The next prime is 11487653. The reversal of 11487647 is 74678411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74678411 = 31 ⋅2408981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11487647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11487647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11487607) 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, 302288 + ... + 302325.

It is an arithmetic number, because the mean of its divisors is an integer number (3023070).

Almost surely, 2^11487647 is an apocalyptic number.

11487647 is a deficient number, since it is larger than the sum of its proper divisors (604633).

11487647 is an equidigital number, since it uses as much as digits as its factorization.

11487647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604632.

The product of its digits is 37632, while the sum is 38.

The square root of 11487647 is about 3389.3431517036. The cubic root of 11487647 is about 225.6370227350.

The spelling of 11487647 in words is "eleven million, four hundred eighty-seven thousand, six hundred forty-seven".