1073376809 has 2 divisors, whose sum is σ = 1073376810. Its totient is φ = 1073376808.

The previous prime is 1073376803. The next prime is 1073376839. The reversal of 1073376809 is 9086733701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 937584400 + 135792409 = 30620^2 + 11653^2 .

It is an emirp because it is prime and its reverse (9086733701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073376809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1073376809.

It is not a weakly prime, because it can be changed into another prime (1073376803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536688404 + 536688405.

It is an arithmetic number, because the mean of its divisors is an integer number (536688405).

Almost surely, 2^1073376809 is an apocalyptic number.

It is an amenable number.

1073376809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073376809 is an equidigital number, since it uses as much as digits as its factorization.

1073376809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 1073376809 is about 32762.4298396807. The cubic root of 1073376809 is about 1023.8839517054.

The spelling of 1073376809 in words is "one billion, seventy-three million, three hundred seventy-six thousand, eight hundred nine".