80789 has 2 divisors, whose sum is σ = 80790. Its totient is φ = 80788.

The previous prime is 80783. The next prime is 80803. The reversal of 80789 is 98708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52900 + 27889 = 230^2 + 167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40394 + 40395.

It is an arithmetic number, because the mean of its divisors is an integer number (40395).

2⁸⁰⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

80789 is a deficient number, since it is larger than the sum of its proper divisors (1).

80789 is an equidigital number, since it uses as much as digits as its factorization.

80789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 80789 is about 284.2340584800. The cubic root of 80789 is about 43.2298847286.

The spelling of 80789 in words is "eighty thousand, seven hundred eighty-nine".