2107728097 has 2 divisors, whose sum is σ = 2107728098. Its totient is φ = 2107728096.

The previous prime is 2107728071. The next prime is 2107728107. The reversal of 2107728097 is 7908277012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1750669281 + 357058816 = 41841^2 + 18896^2 .

It is a cyclic number.

It is not a de Polignac number, because 2107728097 - 2¹⁵ = 2107695329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2107728067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053864048 + 1053864049.

It is an arithmetic number, because the mean of its divisors is an integer number (1053864049).

Almost surely, 2^2107728097 is an apocalyptic number.

It is an amenable number.

2107728097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2107728097 is an equidigital number, since it uses as much as digits as its factorization.

2107728097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 2107728097 is about 45909.9999673274. Note that the first 4 decimals coincide. The cubic root of 2107728097 is about 1282.1481054599.

The spelling of 2107728097 in words is "two billion, one hundred seven million, seven hundred twenty-eight thousand, ninety-seven".