80771843 has 2 divisors, whose sum is σ = 80771844. Its totient is φ = 80771842.

The previous prime is 80771819. The next prime is 80771893. The reversal of 80771843 is 34817708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80771843 - 2¹² = 80767747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80771797 and 80771806.

It is not a weakly prime, because it can be changed into another prime (80771893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40385921 + 40385922.

It is an arithmetic number, because the mean of its divisors is an integer number (40385922).

Almost surely, 2^80771843 is an apocalyptic number.

80771843 is a deficient number, since it is larger than the sum of its proper divisors (1).

80771843 is an equidigital number, since it uses as much as digits as its factorization.

80771843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 80771843 is about 8987.3156726578. The cubic root of 80771843 is about 432.2682429697.

The spelling of 80771843 in words is "eighty million, seven hundred seventy-one thousand, eight hundred forty-three".