82281079 has 2 divisors, whose sum is σ = 82281080. Its totient is φ = 82281078.

The previous prime is 82281047. The next prime is 82281083. The reversal of 82281079 is 97018228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82281079 - 2⁵ = 82281047 is a prime.

It is a super-2 number, since 2×82281079² = 13540351922808482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82281019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41140539 + 41140540.

It is an arithmetic number, because the mean of its divisors is an integer number (41140540).

Almost surely, 2^82281079 is an apocalyptic number.

82281079 is a deficient number, since it is larger than the sum of its proper divisors (1).

82281079 is an equidigital number, since it uses as much as digits as its factorization.

82281079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 82281079 is about 9070.8918525137. The cubic root of 82281079 is about 434.9439818647.

The spelling of 82281079 in words is "eighty-two million, two hundred eighty-one thousand, seventy-nine".