2084621911 has 2 divisors, whose sum is σ = 2084621912. Its totient is φ = 2084621910.

The previous prime is 2084621909. The next prime is 2084622011. The reversal of 2084621911 is 1191264802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2084621911 - 2¹ = 2084621909 is a prime.

Together with 2084621909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2084621611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042310955 + 1042310956.

It is an arithmetic number, because the mean of its divisors is an integer number (1042310956).

Almost surely, 2^2084621911 is an apocalyptic number.

2084621911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2084621911 is an equidigital number, since it uses as much as digits as its factorization.

2084621911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2084621911 is about 45657.6599378461. The cubic root of 2084621911 is about 1277.4456528440.

The spelling of 2084621911 in words is "two billion, eighty-four million, six hundred twenty-one thousand, nine hundred eleven".