82985841 has 6 divisors (see below), whose sum is σ = 119868450. Its totient is φ = 55323888.

The previous prime is 82985839. The next prime is 82985867. The reversal of 82985841 is 14858928.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43560000 + 39425841 = 6600^2 + 6279^2 .

It is not a de Polignac number, because 82985841 - 2¹ = 82985839 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82985821) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 4610316 + ... + 4610333.

It is an arithmetic number, because the mean of its divisors is an integer number (19978075).

Almost surely, 2^82985841 is an apocalyptic number.

It is an amenable number.

82985841 is a deficient number, since it is larger than the sum of its proper divisors (36882609).

82985841 is a wasteful number, since it uses less digits than its factorization.

82985841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220655 (or 9220652 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 82985841 is about 9109.6564699225. The cubic root of 82985841 is about 436.1822614945.

The spelling of 82985841 in words is "eighty-two million, nine hundred eighty-five thousand, eight hundred forty-one".