2011862 has 4 divisors (see below), whose sum is σ = 3017796. Its totient is φ = 1005930.

The previous prime is 2011861. The next prime is 2011897. The reversal of 2011862 is 2681102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011861) 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 as a sum of consecutive naturals, namely, 502964 + ... + 502967.

It is an arithmetic number, because the mean of its divisors is an integer number (754449).

2^2011862 is an apocalyptic number.

2011862 is a deficient number, since it is larger than the sum of its proper divisors (1005934).

2011862 is a wasteful number, since it uses less digits than its factorization.

2011862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005933.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2011862 is about 1418.4012126334. The cubic root of 2011862 is about 126.2407005535.

Adding to 2011862 its reverse (2681102), we get a palindrome (4692964).

The spelling of 2011862 in words is "two million, eleven thousand, eight hundred sixty-two".