83439673 has 2 divisors, whose sum is σ = 83439674. Its totient is φ = 83439672.

The previous prime is 83439667. The next prime is 83439683. The reversal of 83439673 is 37693438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82301184 + 1138489 = 9072^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 83439673 - 2¹⁷ = 83308601 is a prime.

It is not a weakly prime, because it can be changed into another prime (83439623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41719836 + 41719837.

It is an arithmetic number, because the mean of its divisors is an integer number (41719837).

Almost surely, 2^83439673 is an apocalyptic number.

It is an amenable number.

83439673 is a deficient number, since it is larger than the sum of its proper divisors (1).

83439673 is an equidigital number, since it uses as much as digits as its factorization.

83439673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 83439673 is about 9134.5318982420. The cubic root of 83439673 is about 436.9759459065.

The spelling of 83439673 in words is "eighty-three million, four hundred thirty-nine thousand, six hundred seventy-three".