82789829 has 2 divisors, whose sum is σ = 82789830. Its totient is φ = 82789828.

The previous prime is 82789807. The next prime is 82789843. The reversal of 82789829 is 92898728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 12061729 = 8410^2 + 3473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82789829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82789849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41394914 + 41394915.

It is an arithmetic number, because the mean of its divisors is an integer number (41394915).

Almost surely, 2^82789829 is an apocalyptic number.

It is an amenable number.

82789829 is a deficient number, since it is larger than the sum of its proper divisors (1).

82789829 is an equidigital number, since it uses as much as digits as its factorization.

82789829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 53.

The square root of 82789829 is about 9098.8916357983. The cubic root of 82789829 is about 435.8385708950.

The spelling of 82789829 in words is "eighty-two million, seven hundred eighty-nine thousand, eight hundred twenty-nine".