83030309 has 2 divisors, whose sum is σ = 83030310. Its totient is φ = 83030308.

The previous prime is 83030303. The next prime is 83030317. The reversal of 83030309 is 90303038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 15626209 = 8210^2 + 3953^2 .

It is a cyclic number.

It is not a de Polignac number, because 83030309 - 2⁴ = 83030293 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83030303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41515154 + 41515155.

It is an arithmetic number, because the mean of its divisors is an integer number (41515155).

Almost surely, 2^83030309 is an apocalyptic number.

It is an amenable number.

83030309 is a deficient number, since it is larger than the sum of its proper divisors (1).

83030309 is an equidigital number, since it uses as much as digits as its factorization.

83030309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 83030309 is about 9112.0968497926. The cubic root of 83030309 is about 436.2601570693.

The spelling of 83030309 in words is "eighty-three million, thirty thousand, three hundred nine".