80811743 has 2 divisors, whose sum is σ = 80811744. Its totient is φ = 80811742.

The previous prime is 80811701. The next prime is 80811793. The reversal of 80811743 is 34711808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80811743 - 2¹⁶ = 80746207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80811793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40405871 + 40405872.

It is an arithmetic number, because the mean of its divisors is an integer number (40405872).

Almost surely, 2^80811743 is an apocalyptic number.

80811743 is a deficient number, since it is larger than the sum of its proper divisors (1).

80811743 is an equidigital number, since it uses as much as digits as its factorization.

80811743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 80811743 is about 8989.5351937684. The cubic root of 80811743 is about 432.3394091213.

The spelling of 80811743 in words is "eighty million, eight hundred eleven thousand, seven hundred forty-three".