11271687 has 16 divisors (see below), whose sum is σ = 17233920. Its totient is φ = 6419232.

The previous prime is 11271683. The next prime is 11271707. The reversal of 11271687 is 78617211.

It is not a de Polignac number, because 11271687 - 2² = 11271683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11271683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7114 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (1077120).

Almost surely, 2^11271687 is an apocalyptic number.

11271687 is a deficient number, since it is larger than the sum of its proper divisors (5962233).

11271687 is a wasteful number, since it uses less digits than its factorization.

11271687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822.

The product of its digits is 4704, while the sum is 33.

The square root of 11271687 is about 3357.3333167858. Note that the first 4 decimals coincide. The cubic root of 11271687 is about 224.2141274620.

Adding to 11271687 its reverse (78617211), we get a palindrome (89888898).

The spelling of 11271687 in words is "eleven million, two hundred seventy-one thousand, six hundred eighty-seven".