82578233 has 2 divisors, whose sum is σ = 82578234. Its totient is φ = 82578232.

The previous prime is 82578227. The next prime is 82578239. The reversal of 82578233 is 33287528.

It is a balanced prime because it is at equal distance from previous prime (82578227) and next prime (82578239).

It can be written as a sum of positive squares in only one way, i.e., 59413264 + 23164969 = 7708^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 82578233 - 2⁴ = 82578217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82578239) 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, 41289116 + 41289117.

It is an arithmetic number, because the mean of its divisors is an integer number (41289117).

Almost surely, 2^82578233 is an apocalyptic number.

It is an amenable number.

82578233 is a deficient number, since it is larger than the sum of its proper divisors (1).

82578233 is an equidigital number, since it uses as much as digits as its factorization.

82578233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 82578233 is about 9087.2566267273. The cubic root of 82578233 is about 435.4669456261.

The spelling of 82578233 in words is "eighty-two million, five hundred seventy-eight thousand, two hundred thirty-three".