82875987 has 8 divisors (see below), whose sum is σ = 122779280. Its totient is φ = 55250640.

The previous prime is 82875953. The next prime is 82876019. The reversal of 82875987 is 78957828.

It is not a de Polignac number, because 82875987 - 2¹¹ = 82873939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82875917) 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 7 ways as a sum of consecutive naturals, for example, 1534714 + ... + 1534767.

It is an arithmetic number, because the mean of its divisors is an integer number (15347410).

Almost surely, 2^82875987 is an apocalyptic number.

82875987 is a deficient number, since it is larger than the sum of its proper divisors (39903293).

82875987 is a wasteful number, since it uses less digits than its factorization.

82875987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069490 (or 3069484 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 82875987 is about 9103.6249373533. The cubic root of 82875987 is about 435.9897084657.

The spelling of 82875987 in words is "eighty-two million, eight hundred seventy-five thousand, nine hundred eighty-seven".