2011893 has 16 divisors (see below), whose sum is σ = 2929920. Its totient is φ = 1220544.

The previous prime is 2011861. The next prime is 2011897. The reversal of 2011893 is 3981102.

It is not a de Polignac number, because 2011893 - 2⁵ = 2011861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011897) 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, 2755 + ... + 3407.

It is an arithmetic number, because the mean of its divisors is an integer number (183120).

2^2011893 is an apocalyptic number.

It is an amenable number.

2011893 is a deficient number, since it is larger than the sum of its proper divisors (918027).

2011893 is a wasteful number, since it uses less digits than its factorization.

2011893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2011893 is about 1418.4121403880. The cubic root of 2011893 is about 126.2413489481.

Adding to 2011893 its reverse (3981102), we get a palindrome (5992995).

The spelling of 2011893 in words is "two million, eleven thousand, eight hundred ninety-three".