82176885 has 24 divisors (see below), whose sum is σ = 162789120. Its totient is φ = 37566432.

The previous prime is 82176883. The next prime is 82176893. The reversal of 82176885 is 58867128.

It is not a de Polignac number, because 82176885 - 2¹ = 82176883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82176885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82176883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130125 + ... + 130754.

It is an arithmetic number, because the mean of its divisors is an integer number (6782880).

Almost surely, 2^82176885 is an apocalyptic number.

It is an amenable number.

82176885 is a deficient number, since it is larger than the sum of its proper divisors (80612235).

82176885 is a wasteful number, since it uses less digits than its factorization.

82176885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260897 (or 260894 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 82176885 is about 9065.1467169594. The cubic root of 82176885 is about 434.7603118703.

The spelling of 82176885 in words is "eighty-two million, one hundred seventy-six thousand, eight hundred eighty-five".