82859857 has 2 divisors, whose sum is σ = 82859858. Its totient is φ = 82859856.

The previous prime is 82859851. The next prime is 82859863. The reversal of 82859857 is 75895828.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (82859851) and next prime (82859863).

It can be written as a sum of positive squares in only one way, i.e., 79138816 + 3721041 = 8896^2 + 1929^2 .

It is a cyclic number.

It is not a de Polignac number, because 82859857 - 2¹¹ = 82857809 is a prime.

It is not a weakly prime, because it can be changed into another prime (82859851) 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 as a sum of consecutive naturals, namely, 41429928 + 41429929.

It is an arithmetic number, because the mean of its divisors is an integer number (41429929).

Almost surely, 2^82859857 is an apocalyptic number.

It is an amenable number.

82859857 is a deficient number, since it is larger than the sum of its proper divisors (1).

82859857 is an equidigital number, since it uses as much as digits as its factorization.

82859857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 52.

The square root of 82859857 is about 9102.7389834049. The cubic root of 82859857 is about 435.9614213403.

The spelling of 82859857 in words is "eighty-two million, eight hundred fifty-nine thousand, eight hundred fifty-seven".