2111047739 has 4 divisors (see below), whose sum is σ = 2117924424. Its totient is φ = 2104171056.

The previous prime is 2111047667. The next prime is 2111047751. The reversal of 2111047739 is 9377401112.

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 2111047739 - 2²⁰ = 2109999163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111047699 and 2111047708.

It is not an unprimeable number, because it can be changed into a prime (2111047759) 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, 3437882 + ... + 3438495.

It is an arithmetic number, because the mean of its divisors is an integer number (529481106).

Almost surely, 2^2111047739 is an apocalyptic number.

2111047739 is a deficient number, since it is larger than the sum of its proper divisors (6876685).

2111047739 is an equidigital number, since it uses as much as digits as its factorization.

2111047739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876684.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 2111047739 is about 45946.1395440357. The cubic root of 2111047739 is about 1282.8208741055.

The spelling of 2111047739 in words is "two billion, one hundred eleven million, forty-seven thousand, seven hundred thirty-nine".