2209873117 has 2 divisors, whose sum is σ = 2209873118. Its totient is φ = 2209873116.

The previous prime is 2209873069. The next prime is 2209873121. The reversal of 2209873117 is 7113789022.

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., 1344395556 + 865477561 = 36666^2 + 29419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2209873117 - 2¹⁹ = 2209348829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2209873117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209873187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104936558 + 1104936559.

It is an arithmetic number, because the mean of its divisors is an integer number (1104936559).

Almost surely, 2^2209873117 is an apocalyptic number.

It is an amenable number.

2209873117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209873117 is an equidigital number, since it uses as much as digits as its factorization.

2209873117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 2209873117 is about 47009.2875610767. The cubic root of 2209873117 is about 1302.5341332513.

The spelling of 2209873117 in words is "two billion, two hundred nine million, eight hundred seventy-three thousand, one hundred seventeen".