82203643 has 2 divisors, whose sum is σ = 82203644. Its totient is φ = 82203642.

The previous prime is 82203637. The next prime is 82203727. The reversal of 82203643 is 34630228.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82203643 - 2⁹ = 82203131 is a prime.

It is not a weakly prime, because it can be changed into another prime (82203623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41101821 + 41101822.

It is an arithmetic number, because the mean of its divisors is an integer number (41101822).

Almost surely, 2^82203643 is an apocalyptic number.

82203643 is a deficient number, since it is larger than the sum of its proper divisors (1).

82203643 is an equidigital number, since it uses as much as digits as its factorization.

82203643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 82203643 is about 9066.6224692550. The cubic root of 82203643 is about 434.8074948626.

The spelling of 82203643 in words is "eighty-two million, two hundred three thousand, six hundred forty-three".