82543603 has 2 divisors, whose sum is σ = 82543604. Its totient is φ = 82543602.

The previous prime is 82543589. The next prime is 82543639. The reversal of 82543603 is 30634528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82543603 - 2¹⁷ = 82412531 is a prime.

It is not a weakly prime, because it can be changed into another prime (82543103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41271801 + 41271802.

It is an arithmetic number, because the mean of its divisors is an integer number (41271802).

Almost surely, 2^82543603 is an apocalyptic number.

82543603 is a deficient number, since it is larger than the sum of its proper divisors (1).

82543603 is an equidigital number, since it uses as much as digits as its factorization.

82543603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 82543603 is about 9085.3510113809. The cubic root of 82543603 is about 435.4060646559.

The spelling of 82543603 in words is "eighty-two million, five hundred forty-three thousand, six hundred three".