2084211779 has 4 divisors (see below), whose sum is σ = 2244535776. Its totient is φ = 1923887784.

The previous prime is 2084211761. The next prime is 2084211839. The reversal of 2084211779 is 9771124802.

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

It is not a de Polignac number, because 2084211779 - 2¹² = 2084207683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2084211979) 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, 80161979 + ... + 80162004.

It is an arithmetic number, because the mean of its divisors is an integer number (561133944).

Almost surely, 2^2084211779 is an apocalyptic number.

2084211779 is a deficient number, since it is larger than the sum of its proper divisors (160323997).

2084211779 is a wasteful number, since it uses less digits than its factorization.

2084211779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160323996.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 2084211779 is about 45653.1683347388. The cubic root of 2084211779 is about 1277.3618717516.

The spelling of 2084211779 in words is "two billion, eighty-four million, two hundred eleven thousand, seven hundred seventy-nine".