2089274909 has 2 divisors, whose sum is σ = 2089274910. Its totient is φ = 2089274908.

The previous prime is 2089274881. The next prime is 2089274917. The reversal of 2089274909 is 9094729802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1858903225 + 230371684 = 43115^2 + 15178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2089274909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089274309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044637454 + 1044637455.

It is an arithmetic number, because the mean of its divisors is an integer number (1044637455).

Almost surely, 2^2089274909 is an apocalyptic number.

It is an amenable number.

2089274909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089274909 is an equidigital number, since it uses as much as digits as its factorization.

2089274909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 2089274909 is about 45708.5868191087. The cubic root of 2089274909 is about 1278.3953910349.

The spelling of 2089274909 in words is "two billion, eighty-nine million, two hundred seventy-four thousand, nine hundred nine".