82771269 has 16 divisors (see below), whose sum is σ = 127857792. Its totient is φ = 46649088.

The previous prime is 82771267. The next prime is 82771289. The reversal of 82771269 is 96217728.

It is not a de Polignac number, because 82771269 - 2¹ = 82771267 is a prime.

It is a super-2 number, since 2×82771269² = 13702165943740722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82771269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82771261) 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 15 ways as a sum of consecutive naturals, for example, 25464 + ... + 28529.

It is an arithmetic number, because the mean of its divisors is an integer number (7991112).

Almost surely, 2^82771269 is an apocalyptic number.

It is an amenable number.

82771269 is a deficient number, since it is larger than the sum of its proper divisors (45086523).

82771269 is a wasteful number, since it uses less digits than its factorization.

82771269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54076.

The product of its digits is 84672, while the sum is 42.

The square root of 82771269 is about 9097.8716741884. The cubic root of 82771269 is about 435.8059993882.

The spelling of 82771269 in words is "eighty-two million, seven hundred seventy-one thousand, two hundred sixty-nine".