82718429 has 2 divisors, whose sum is σ = 82718430. Its totient is φ = 82718428.

The previous prime is 82718423. The next prime is 82718431. The reversal of 82718429 is 92481728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 36844900 = 6773^2 + 6070^2 .

It is a cyclic number.

It is not a de Polignac number, because 82718429 - 2¹⁶ = 82652893 is a prime.

Together with 82718431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82718423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41359214 + 41359215.

It is an arithmetic number, because the mean of its divisors is an integer number (41359215).

Almost surely, 2^82718429 is an apocalyptic number.

It is an amenable number.

82718429 is a deficient number, since it is larger than the sum of its proper divisors (1).

82718429 is an equidigital number, since it uses as much as digits as its factorization.

82718429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 82718429 is about 9094.9672346853. The cubic root of 82718429 is about 435.7132421981.

The spelling of 82718429 in words is "eighty-two million, seven hundred eighteen thousand, four hundred twenty-nine".