80680543 has 2 divisors, whose sum is σ = 80680544. Its totient is φ = 80680542.

The previous prime is 80680519. The next prime is 80680571. The reversal of 80680543 is 34508608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80680543 - 2⁹ = 80680031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80680499 and 80680508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80680643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40340271 + 40340272.

It is an arithmetic number, because the mean of its divisors is an integer number (40340272).

Almost surely, 2^80680543 is an apocalyptic number.

80680543 is a deficient number, since it is larger than the sum of its proper divisors (1).

80680543 is an equidigital number, since it uses as much as digits as its factorization.

80680543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 80680543 is about 8982.2348555357. The cubic root of 80680543 is about 432.1053109027.

The spelling of 80680543 in words is "eighty million, six hundred eighty thousand, five hundred forty-three".