82068870 has 64 divisors (see below), whose sum is σ = 213583104. Its totient is φ = 20062080.

The previous prime is 82068859. The next prime is 82068901. The reversal of 82068870 is 7886028.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 62925 + ... + 64215.

It is an arithmetic number, because the mean of its divisors is an integer number (3337236).

Almost surely, 2^82068870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82068870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106791552).

82068870 is an abundant number, since it is smaller than the sum of its proper divisors (131514234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82068870 is a wasteful number, since it uses less digits than its factorization.

82068870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 82068870 is about 9059.1870496198. The cubic root of 82068870 is about 434.5697423630.

The spelling of 82068870 in words is "eighty-two million, sixty-eight thousand, eight hundred seventy".