80709743 has 2 divisors, whose sum is σ = 80709744. Its totient is φ = 80709742.

The previous prime is 80709731. The next prime is 80709751. The reversal of 80709743 is 34790708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80709743 - 2¹⁴ = 80693359 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80709697 and 80709706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80709793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40354871 + 40354872.

It is an arithmetic number, because the mean of its divisors is an integer number (40354872).

Almost surely, 2^80709743 is an apocalyptic number.

80709743 is a deficient number, since it is larger than the sum of its proper divisors (1).

80709743 is an equidigital number, since it uses as much as digits as its factorization.

80709743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 80709743 is about 8983.8601391607. The cubic root of 80709743 is about 432.1574339745.

The spelling of 80709743 in words is "eighty million, seven hundred nine thousand, seven hundred forty-three".