82771029 has 12 divisors (see below), whose sum is σ = 130427232. Its totient is φ = 50164200.

The previous prime is 82771021. The next prime is 82771037. The reversal of 82771029 is 92017728.

It is an interprime number because it is at equal distance from previous prime (82771021) and next prime (82771037).

It is not a de Polignac number, because 82771029 - 2³ = 82771021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82770984 and 82771002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82771021) 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 11 ways as a sum of consecutive naturals, for example, 417937 + ... + 418134.

It is an arithmetic number, because the mean of its divisors is an integer number (10868936).

Almost surely, 2^82771029 is an apocalyptic number.

It is an amenable number.

82771029 is a deficient number, since it is larger than the sum of its proper divisors (47656203).

82771029 is a wasteful number, since it uses less digits than its factorization.

82771029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836088 (or 836085 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 82771029 is about 9097.8584842808. The cubic root of 82771029 is about 435.8055781730.

The spelling of 82771029 in words is "eighty-two million, seven hundred seventy-one thousand, twenty-nine".