82858469 has 2 divisors, whose sum is σ = 82858470. Its totient is φ = 82858468.

The previous prime is 82858427. The next prime is 82858519. The reversal of 82858469 is 96485828.

It is an a-pointer prime, because the next prime (82858519) can be obtained adding 82858469 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41770369 + 41088100 = 6463^2 + 6410^2 .

It is a cyclic number.

It is not a de Polignac number, because 82858469 - 2¹⁶ = 82792933 is a prime.

It is a super-2 number, since 2×82858469² = 13731051770047922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82858169) 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, 41429234 + 41429235.

It is an arithmetic number, because the mean of its divisors is an integer number (41429235).

Almost surely, 2^82858469 is an apocalyptic number.

It is an amenable number.

82858469 is a deficient number, since it is larger than the sum of its proper divisors (1).

82858469 is an equidigital number, since it uses as much as digits as its factorization.

82858469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 50.

The square root of 82858469 is about 9102.6627422969. The cubic root of 82858469 is about 435.9589870380.

The spelling of 82858469 in words is "eighty-two million, eight hundred fifty-eight thousand, four hundred sixty-nine".