11891874 has 64 divisors (see below), whose sum is σ = 27184896. Its totient is φ = 3446784.

The previous prime is 11891833. The next prime is 11891917. The reversal of 11891874 is 47819811.

11891874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86734 + ... + 86870.

It is an arithmetic number, because the mean of its divisors is an integer number (424764).

Almost surely, 2^11891874 is an apocalyptic number.

11891874 is an abundant number, since it is smaller than the sum of its proper divisors (15293022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11891874 is a wasteful number, since it uses less digits than its factorization.

11891874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its digits is 16128, while the sum is 39.

The square root of 11891874 is about 3448.4596561363. The cubic root of 11891874 is about 228.2531429679.

The spelling of 11891874 in words is "eleven million, eight hundred ninety-one thousand, eight hundred seventy-four".