83823559 has 2 divisors, whose sum is σ = 83823560. Its totient is φ = 83823558.

The previous prime is 83823541. The next prime is 83823589. The reversal of 83823559 is 95532838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83823559 - 2⁵ = 83823527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83823529) 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, 41911779 + 41911780.

It is an arithmetic number, because the mean of its divisors is an integer number (41911780).

Almost surely, 2^83823559 is an apocalyptic number.

83823559 is a deficient number, since it is larger than the sum of its proper divisors (1).

83823559 is an equidigital number, since it uses as much as digits as its factorization.

83823559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 83823559 is about 9155.5206842648. The cubic root of 83823559 is about 437.6450614478.

The spelling of 83823559 in words is "eighty-three million, eight hundred twenty-three thousand, five hundred fifty-nine".