80793709 has 2 divisors, whose sum is σ = 80793710. Its totient is φ = 80793708.

The previous prime is 80793703. The next prime is 80793749. The reversal of 80793709 is 90739708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80604484 + 189225 = 8978^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 80793709 - 2¹¹ = 80791661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80793703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40396854 + 40396855.

It is an arithmetic number, because the mean of its divisors is an integer number (40396855).

Almost surely, 2^80793709 is an apocalyptic number.

It is an amenable number.

80793709 is a deficient number, since it is larger than the sum of its proper divisors (1).

80793709 is an equidigital number, since it uses as much as digits as its factorization.

80793709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 80793709 is about 8988.5320826039. The cubic root of 80793709 is about 432.3072463495.

The spelling of 80793709 in words is "eighty million, seven hundred ninety-three thousand, seven hundred nine".