82238971 has 2 divisors, whose sum is σ = 82238972. Its totient is φ = 82238970.

The previous prime is 82238969. The next prime is 82239089. The reversal of 82238971 is 17983228.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82238971 - 2¹ = 82238969 is a prime.

It is a super-2 number, since 2×82238971² = 13526496702277682, which contains 22 as substring.

Together with 82238969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82238671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41119485 + 41119486.

It is an arithmetic number, because the mean of its divisors is an integer number (41119486).

Almost surely, 2^82238971 is an apocalyptic number.

82238971 is a deficient number, since it is larger than the sum of its proper divisors (1).

82238971 is an equidigital number, since it uses as much as digits as its factorization.

82238971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 82238971 is about 9068.5705047709. The cubic root of 82238971 is about 434.8697738511.

It can be divided in two parts, 822 and 38971, that added together give a palindrome (39793).

The spelling of 82238971 in words is "eighty-two million, two hundred thirty-eight thousand, nine hundred seventy-one".