2900065909 has 4 divisors (see below), whose sum is σ = 3123147916. Its totient is φ = 2676983904.

The previous prime is 2900065897. The next prime is 2900065919. The reversal of 2900065909 is 9095600092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1039869009 + 1860196900 = 32247^2 + 43130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2900065909 - 2⁹ = 2900065397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2900065919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111540984 + ... + 111541009.

It is an arithmetic number, because the mean of its divisors is an integer number (780786979).

Almost surely, 2^2900065909 is an apocalyptic number.

It is an amenable number.

2900065909 is a deficient number, since it is larger than the sum of its proper divisors (223082007).

2900065909 is a wasteful number, since it uses less digits than its factorization.

2900065909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223082006.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 2900065909 is about 53852.2600175703. The cubic root of 2900065909 is about 1426.0539504028.

The spelling of 2900065909 in words is "two billion, nine hundred million, sixty-five thousand, nine hundred nine".