83882789 has 2 divisors, whose sum is σ = 83882790. Its totient is φ = 83882788.

The previous prime is 83882779. The next prime is 83882831. The reversal of 83882789 is 98728838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76860289 + 7022500 = 8767^2 + 2650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83882789 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83882789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83882759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41941394 + 41941395.

It is an arithmetic number, because the mean of its divisors is an integer number (41941395).

Almost surely, 2^83882789 is an apocalyptic number.

It is an amenable number.

83882789 is a deficient number, since it is larger than the sum of its proper divisors (1).

83882789 is an equidigital number, since it uses as much as digits as its factorization.

83882789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 53.

The square root of 83882789 is about 9158.7547734395. The cubic root of 83882789 is about 437.7481176540.

The spelling of 83882789 in words is "eighty-three million, eight hundred eighty-two thousand, seven hundred eighty-nine".