82413869 has 2 divisors, whose sum is σ = 82413870. Its totient is φ = 82413868.

The previous prime is 82413829. The next prime is 82413883. The reversal of 82413869 is 96831428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 29560969 = 7270^2 + 5437^2 .

It is a cyclic number.

It is not a de Polignac number, because 82413869 - 2²⁴ = 65636653 is a prime.

It is a super-2 number, since 2×82413869² = 13584091607098322, 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 (82413829) 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, 41206934 + 41206935.

It is an arithmetic number, because the mean of its divisors is an integer number (41206935).

Almost surely, 2^82413869 is an apocalyptic number.

It is an amenable number.

82413869 is a deficient number, since it is larger than the sum of its proper divisors (1).

82413869 is an equidigital number, since it uses as much as digits as its factorization.

82413869 is an odious number, because the sum of its binary digits is odd.

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

The square root of 82413869 is about 9078.2084686352. The cubic root of 82413869 is about 435.1778354220.

The spelling of 82413869 in words is "eighty-two million, four hundred thirteen thousand, eight hundred sixty-nine".