11837871 has 12 divisors (see below), whose sum is σ = 17200248. Its totient is φ = 7845264.

The previous prime is 11837869. The next prime is 11837873. The reversal of 11837871 is 17873811.

It is an interprime number because it is at equal distance from previous prime (11837869) and next prime (11837873).

It is not a de Polignac number, because 11837871 - 2¹ = 11837869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11837873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2245 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1433354).

Almost surely, 2^11837871 is an apocalyptic number.

11837871 is a deficient number, since it is larger than the sum of its proper divisors (5362377).

11837871 is a wasteful number, since it uses less digits than its factorization.

11837871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7782 (or 7779 counting only the distinct ones).

The product of its digits is 9408, while the sum is 36.

The square root of 11837871 is about 3440.6207288802. The cubic root of 11837871 is about 227.9071066639.

The spelling of 11837871 in words is "eleven million, eight hundred thirty-seven thousand, eight hundred seventy-one".