82865170 has 16 divisors (see below), whose sum is σ = 153969408. Its totient is φ = 32076720.

The previous prime is 82865149. The next prime is 82865173. The reversal of 82865170 is 7156828.

It is not an unprimeable number, because it can be changed into a prime (82865173) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 133344 + ... + 133963.

It is an arithmetic number, because the mean of its divisors is an integer number (9623088).

Almost surely, 2^82865170 is an apocalyptic number.

82865170 is a deficient number, since it is larger than the sum of its proper divisors (71104238).

82865170 is a wasteful number, since it uses less digits than its factorization.

82865170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267345.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 82865170 is about 9103.0308139652. The cubic root of 82865170 is about 435.9707391355.

It can be divided in two parts, 8286 and 5170, that added together give a square (13456 = 116²).

The spelling of 82865170 in words is "eighty-two million, eight hundred sixty-five thousand, one hundred seventy".