82071849 has 16 divisors (see below), whose sum is σ = 118906880. Its totient is φ = 50161680.

The previous prime is 82071841. The next prime is 82071853. The reversal of 82071849 is 94817028.

It is not a de Polignac number, because 82071849 - 2³ = 82071841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82071841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21457 + ... + 24990.

It is an arithmetic number, because the mean of its divisors is an integer number (7431680).

Almost surely, 2^82071849 is an apocalyptic number.

It is an amenable number.

82071849 is a deficient number, since it is larger than the sum of its proper divisors (36835031).

82071849 is a wasteful number, since it uses less digits than its factorization.

82071849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46500.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 82071849 is about 9059.3514668546. The cubic root of 82071849 is about 434.5750004168.

The spelling of 82071849 in words is "eighty-two million, seventy-one thousand, eight hundred forty-nine".