82065842 has 4 divisors (see below), whose sum is σ = 123098766. Its totient is φ = 41032920.

The previous prime is 82065829. The next prime is 82065859. The reversal of 82065842 is 24856028.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82065481 + 361 = 9059^2 + 19^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20516459 + ... + 20516462.

Almost surely, 2^82065842 is an apocalyptic number.

82065842 is a deficient number, since it is larger than the sum of its proper divisors (41032924).

82065842 is a wasteful number, since it uses less digits than its factorization.

82065842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41032923.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 82065842 is about 9059.0199249146. The cubic root of 82065842 is about 434.5643976919.

The spelling of 82065842 in words is "eighty-two million, sixty-five thousand, eight hundred forty-two".