1073909 has 2 divisors, whose sum is σ = 1073910. Its totient is φ = 1073908.

The previous prime is 1073881. The next prime is 1073911. The reversal of 1073909 is 9093701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 970225 + 103684 = 985^2 + 322^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073909 - 2¹⁶ = 1008373 is a prime.

Together with 1073911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536954 + 536955.

It is an arithmetic number, because the mean of its divisors is an integer number (536955).

2^1073909 is an apocalyptic number.

It is an amenable number.

1073909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073909 is an equidigital number, since it uses as much as digits as its factorization.

1073909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1073909 is about 1036.2958071902. The cubic root of 1073909 is about 102.4053141061.

The spelling of 1073909 in words is "one million, seventy-three thousand, nine hundred nine".