82076257 has 16 divisors (see below), whose sum is σ = 88531200. Its totient is φ = 75857040.

The previous prime is 82076233. The next prime is 82076261. The reversal of 82076257 is 75267028.

It is a cyclic number.

It is not a de Polignac number, because 82076257 - 2⁷ = 82076129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82076227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236358 + ... + 236704.

It is an arithmetic number, because the mean of its divisors is an integer number (5533200).

Almost surely, 2^82076257 is an apocalyptic number.

It is an amenable number.

82076257 is a deficient number, since it is larger than the sum of its proper divisors (6454943).

82076257 is a wasteful number, since it uses less digits than its factorization.

82076257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 82076257 is about 9059.5947481110. The cubic root of 82076257 is about 434.5827804791.

It can be divided in two parts, 820 and 76257, that added together give a palindrome (77077).

The spelling of 82076257 in words is "eighty-two million, seventy-six thousand, two hundred fifty-seven".