82641193 has 2 divisors, whose sum is σ = 82641194. Its totient is φ = 82641192.

The previous prime is 82641157. The next prime is 82641253. The reversal of 82641193 is 39114628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50865424 + 31775769 = 7132^2 + 5637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82641193 is a prime.

It is not a weakly prime, because it can be changed into another prime (82641113) 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 as a sum of consecutive naturals, namely, 41320596 + 41320597.

It is an arithmetic number, because the mean of its divisors is an integer number (41320597).

Almost surely, 2^82641193 is an apocalyptic number.

It is an amenable number.

82641193 is a deficient number, since it is larger than the sum of its proper divisors (1).

82641193 is an equidigital number, since it uses as much as digits as its factorization.

82641193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 82641193 is about 9090.7201584913. The cubic root of 82641193 is about 435.5775883182.

The spelling of 82641193 in words is "eighty-two million, six hundred forty-one thousand, one hundred ninety-three".