11927871 has 16 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 7920504.

The previous prime is 11927857. The next prime is 11927873. The reversal of 11927871 is 17872911.

11927871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11927871 - 2⁷ = 11927743 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11927873) 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, 7570 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^11927871 is an apocalyptic number.

11927871 is a deficient number, since it is larger than the sum of its proper divisors (5812929).

11927871 is a wasteful number, since it uses less digits than its factorization.

11927871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1749 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 11927871 is about 3453.6749991857. The cubic root of 11927871 is about 228.4832202979.

The spelling of 11927871 in words is "eleven million, nine hundred twenty-seven thousand, eight hundred seventy-one".