83629439 has 2 divisors, whose sum is σ = 83629440. Its totient is φ = 83629438.

The previous prime is 83629397. The next prime is 83629459. The reversal of 83629439 is 93492638.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83629439 - 2¹² = 83625343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83629439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83629459) 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, 41814719 + 41814720.

It is an arithmetic number, because the mean of its divisors is an integer number (41814720).

Almost surely, 2^83629439 is an apocalyptic number.

83629439 is a deficient number, since it is larger than the sum of its proper divisors (1).

83629439 is an equidigital number, since it uses as much as digits as its factorization.

83629439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 83629439 is about 9144.9132855375. The cubic root of 83629439 is about 437.3069650724.

The spelling of 83629439 in words is "eighty-three million, six hundred twenty-nine thousand, four hundred thirty-nine".