82616215 has 16 divisors (see below), whose sum is σ = 111883680. Its totient is φ = 58011520.

The previous prime is 82616213. The next prime is 82616249. The reversal of 82616215 is 51261628.

It is not a de Polignac number, because 82616215 - 2¹ = 82616213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82616213) 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, 24304 + ... + 27493.

It is an arithmetic number, because the mean of its divisors is an integer number (6992730).

Almost surely, 2^82616215 is an apocalyptic number.

82616215 is a deficient number, since it is larger than the sum of its proper divisors (29267465).

82616215 is a wasteful number, since it uses less digits than its factorization.

82616215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51842.

The product of its digits is 5760, while the sum is 31.

The square root of 82616215 is about 9089.3462361162. The cubic root of 82616215 is about 435.5336999823.

The spelling of 82616215 in words is "eighty-two million, six hundred sixteen thousand, two hundred fifteen".