11871386 has 8 divisors (see below), whose sum is σ = 18241524. Its totient is φ = 5790880.

The previous prime is 11871373. The next prime is 11871403. The reversal of 11871386 is 68317811.

It can be written as a sum of positive squares in 2 ways, for example, as 11015761 + 855625 = 3319^2 + 925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72305 + ... + 72468.

Almost surely, 2^11871386 is an apocalyptic number.

11871386 is a deficient number, since it is larger than the sum of its proper divisors (6370138).

11871386 is a wasteful number, since it uses less digits than its factorization.

11871386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144816.

The product of its digits is 8064, while the sum is 35.

The square root of 11871386 is about 3445.4877738863. The cubic root of 11871386 is about 228.1219850981.

The spelling of 11871386 in words is "eleven million, eight hundred seventy-one thousand, three hundred eighty-six".