82615393 has 16 divisors (see below), whose sum is σ = 101865600. Its totient is φ = 65385216.

The previous prime is 82615391. The next prime is 82615417. The reversal of 82615393 is 39351628.

It is a cyclic number.

It is not a de Polignac number, because 82615393 - 2¹ = 82615391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82615391) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 243 + ... + 12856.

It is an arithmetic number, because the mean of its divisors is an integer number (6366600).

Almost surely, 2^82615393 is an apocalyptic number.

It is an amenable number.

82615393 is a deficient number, since it is larger than the sum of its proper divisors (19250207).

82615393 is a wasteful number, since it uses less digits than its factorization.

82615393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176.

The product of its digits is 38880, while the sum is 37.

The square root of 82615393 is about 9089.3010182302. The cubic root of 82615393 is about 435.5322555124.

The spelling of 82615393 in words is "eighty-two million, six hundred fifteen thousand, three hundred ninety-three".