82742243 has 2 divisors, whose sum is σ = 82742244. Its totient is φ = 82742242.

The previous prime is 82742239. The next prime is 82742251. The reversal of 82742243 is 34224728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82742243 - 2² = 82742239 is a prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41371121 + 41371122.

It is an arithmetic number, because the mean of its divisors is an integer number (41371122).

Almost surely, 2^82742243 is an apocalyptic number.

82742243 is a deficient number, since it is larger than the sum of its proper divisors (1).

82742243 is an equidigital number, since it uses as much as digits as its factorization.

82742243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 82742243 is about 9096.2763260578. The cubic root of 82742243 is about 435.7550510175.

The spelling of 82742243 in words is "eighty-two million, seven hundred forty-two thousand, two hundred forty-three".