82109853 has 12 divisors (see below), whose sum is σ = 135546528. Its totient is φ = 46919880.

The previous prime is 82109851. The next prime is 82109857. The reversal of 82109853 is 35890128.

It is not a de Polignac number, because 82109853 - 2¹ = 82109851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82109851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 651603 + ... + 651728.

It is an arithmetic number, because the mean of its divisors is an integer number (11295544).

Almost surely, 2^82109853 is an apocalyptic number.

It is an amenable number.

82109853 is a deficient number, since it is larger than the sum of its proper divisors (53436675).

82109853 is a wasteful number, since it uses less digits than its factorization.

82109853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303344 (or 1303341 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82109853 is about 9061.4487252315. The cubic root of 82109853 is about 434.6420678297.

The spelling of 82109853 in words is "eighty-two million, one hundred nine thousand, eight hundred fifty-three".