1073968409 has 2 divisors, whose sum is σ = 1073968410. Its totient is φ = 1073968408.

The previous prime is 1073968381. The next prime is 1073968439. The reversal of 1073968409 is 9048693701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548871184 + 525097225 = 23428^2 + 22915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073968409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1073968439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536984204 + 536984205.

It is an arithmetic number, because the mean of its divisors is an integer number (536984205).

Almost surely, 2^1073968409 is an apocalyptic number.

It is an amenable number.

1073968409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073968409 is an equidigital number, since it uses as much as digits as its factorization.

1073968409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1073968409 is about 32771.4572303399. The cubic root of 1073968409 is about 1024.0720243656.

The spelling of 1073968409 in words is "one billion, seventy-three million, nine hundred sixty-eight thousand, four hundred nine".