82260869 has 2 divisors, whose sum is σ = 82260870. Its totient is φ = 82260868.

The previous prime is 82260803. The next prime is 82260881. The reversal of 82260869 is 96806228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72420100 + 9840769 = 8510^2 + 3137^2 .

It is a cyclic number.

It is not a de Polignac number, because 82260869 - 2⁸ = 82260613 is a prime.

It is a super-2 number, since 2×82260869² = 13533701137270322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82260769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41130434 + 41130435.

It is an arithmetic number, because the mean of its divisors is an integer number (41130435).

Almost surely, 2^82260869 is an apocalyptic number.

It is an amenable number.

82260869 is a deficient number, since it is larger than the sum of its proper divisors (1).

82260869 is an equidigital number, since it uses as much as digits as its factorization.

82260869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 82260869 is about 9069.7777811807. Note that the first 4 decimals coincide. The cubic root of 82260869 is about 434.9083684213.

The spelling of 82260869 in words is "eighty-two million, two hundred sixty thousand, eight hundred sixty-nine".