80837789 has 2 divisors, whose sum is σ = 80837790. Its totient is φ = 80837788.

The previous prime is 80837753. The next prime is 80837797. The reversal of 80837789 is 98773808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80820100 + 17689 = 8990^2 + 133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80837789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80837089) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40418894 + 40418895.

It is an arithmetic number, because the mean of its divisors is an integer number (40418895).

Almost surely, 2^80837789 is an apocalyptic number.

It is an amenable number.

80837789 is a deficient number, since it is larger than the sum of its proper divisors (1).

80837789 is an equidigital number, since it uses as much as digits as its factorization.

80837789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 80837789 is about 8990.9837615247. The cubic root of 80837789 is about 432.3858524651.

The spelling of 80837789 in words is "eighty million, eight hundred thirty-seven thousand, seven hundred eighty-nine".