83680543 has 2 divisors, whose sum is σ = 83680544. Its totient is φ = 83680542.

The previous prime is 83680489. The next prime is 83680561. The reversal of 83680543 is 34508638.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83680543 - 2⁹ = 83680031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83680043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41840271 + 41840272.

It is an arithmetic number, because the mean of its divisors is an integer number (41840272).

Almost surely, 2^83680543 is an apocalyptic number.

83680543 is a deficient number, since it is larger than the sum of its proper divisors (1).

83680543 is an equidigital number, since it uses as much as digits as its factorization.

83680543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 83680543 is about 9147.7069804405. The cubic root of 83680543 is about 437.3960229641.

The spelling of 83680543 in words is "eighty-three million, six hundred eighty thousand, five hundred forty-three".