2011047 has 4 divisors (see below), whose sum is σ = 2681400. Its totient is φ = 1340696.

The previous prime is 2011033. The next prime is 2011057. The reversal of 2011047 is 7401102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011047 - 2¹⁰ = 2010023 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335172 + ... + 335177.

It is an arithmetic number, because the mean of its divisors is an integer number (670350).

2^2011047 is an apocalyptic number.

2011047 is a deficient number, since it is larger than the sum of its proper divisors (670353).

2011047 is an equidigital number, since it uses as much as digits as its factorization.

2011047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670352.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 2011047 is about 1418.1138882332. The cubic root of 2011047 is about 126.2236516593.

Adding to 2011047 its reverse (7401102), we get a palindrome (9412149).

The spelling of 2011047 in words is "two million, eleven thousand, forty-seven".