82871655 has 8 divisors (see below), whose sum is σ = 132594672. Its totient is φ = 44198208.

The previous prime is 82871639. The next prime is 82871681. The reversal of 82871655 is 55617828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82871655 - 2⁴ = 82871639 is a prime.

It is a super-2 number, since 2×82871655² = 13735422404878050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762374 + ... + 2762403.

It is an arithmetic number, because the mean of its divisors is an integer number (16574334).

Almost surely, 2^82871655 is an apocalyptic number.

82871655 is a deficient number, since it is larger than the sum of its proper divisors (49723017).

82871655 is a wasteful number, since it uses less digits than its factorization.

82871655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524785.

The product of its digits is 134400, while the sum is 42.

The square root of 82871655 is about 9103.3870070430. The cubic root of 82871655 is about 435.9821118127.

The spelling of 82871655 in words is "eighty-two million, eight hundred seventy-one thousand, six hundred fifty-five".