2011044647 has 4 divisors (see below), whose sum is σ = 2011240896. Its totient is φ = 2010848400.

The previous prime is 2011044613. The next prime is 2011044649. The reversal of 2011044647 is 7464401102.

It is a happy number.

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 2011044647 - 2¹⁴ = 2011028263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011044649) 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, 81854 + ... + 103547.

It is an arithmetic number, because the mean of its divisors is an integer number (502810224).

Almost surely, 2^2011044647 is an apocalyptic number.

2011044647 is a deficient number, since it is larger than the sum of its proper divisors (196249).

2011044647 is a wasteful number, since it uses less digits than its factorization.

2011044647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196248.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2011044647 is about 44844.6724483522. The cubic root of 2011044647 is about 1262.2360243047.

Adding to 2011044647 its reverse (7464401102), we get a palindrome (9475445749).

The spelling of 2011044647 in words is "two billion, eleven million, forty-four thousand, six hundred forty-seven".