83479439 has 2 divisors, whose sum is σ = 83479440. Its totient is φ = 83479438.

The previous prime is 83479433. The next prime is 83479441. The reversal of 83479439 is 93497438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83479439 - 2⁴ = 83479423 is a prime.

Together with 83479441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 83479393 and 83479402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83479433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41739719 + 41739720.

It is an arithmetic number, because the mean of its divisors is an integer number (41739720).

Almost surely, 2^83479439 is an apocalyptic number.

83479439 is a deficient number, since it is larger than the sum of its proper divisors (1).

83479439 is an equidigital number, since it uses as much as digits as its factorization.

83479439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 83479439 is about 9136.7083241176. The cubic root of 83479439 is about 437.0453534400.

The spelling of 83479439 in words is "eighty-three million, four hundred seventy-nine thousand, four hundred thirty-nine".