2905917089 has 2 divisors, whose sum is σ = 2905917090. Its totient is φ = 2905917088.

The previous prime is 2905917043. The next prime is 2905917101. The reversal of 2905917089 is 9807195092.

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., 2632510864 + 273406225 = 51308^2 + 16535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2905917089 - 2⁸ = 2905916833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2905910089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452958544 + 1452958545.

It is an arithmetic number, because the mean of its divisors is an integer number (1452958545).

Almost surely, 2^2905917089 is an apocalyptic number.

It is an amenable number.

2905917089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2905917089 is an equidigital number, since it uses as much as digits as its factorization.

2905917089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 2905917089 is about 53906.5588681006. The cubic root of 2905917089 is about 1427.0123760853.

The spelling of 2905917089 in words is "two billion, nine hundred five million, nine hundred seventeen thousand, eighty-nine".