2106775973 has 2 divisors, whose sum is σ = 2106775974. Its totient is φ = 2106775972.

The previous prime is 2106775961. The next prime is 2106776033. The reversal of 2106775973 is 3795776012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1416242689 + 690533284 = 37633^2 + 26278^2 .

It is a cyclic number.

It is not a de Polignac number, because 2106775973 - 2²⁰ = 2105727397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2106775943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053387986 + 1053387987.

It is an arithmetic number, because the mean of its divisors is an integer number (1053387987).

Almost surely, 2^2106775973 is an apocalyptic number.

It is an amenable number.

2106775973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106775973 is an equidigital number, since it uses as much as digits as its factorization.

2106775973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 2106775973 is about 45899.6293340153. The cubic root of 2106775973 is about 1281.9550147969.

The spelling of 2106775973 in words is "two billion, one hundred six million, seven hundred seventy-five thousand, nine hundred seventy-three".