82987529 has 2 divisors, whose sum is σ = 82987530. Its totient is φ = 82987528.

The previous prime is 82987507. The next prime is 82987537. The reversal of 82987529 is 92578928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 7991929 = 8660^2 + 2827^2 .

It is a cyclic number.

It is not a de Polignac number, because 82987529 - 2⁸ = 82987273 is a prime.

It is not a weakly prime, because it can be changed into another prime (82986529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41493764 + 41493765.

It is an arithmetic number, because the mean of its divisors is an integer number (41493765).

Almost surely, 2^82987529 is an apocalyptic number.

It is an amenable number.

82987529 is a deficient number, since it is larger than the sum of its proper divisors (1).

82987529 is an equidigital number, since it uses as much as digits as its factorization.

82987529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 82987529 is about 9109.7491183896. The cubic root of 82987529 is about 436.1852189093.

The spelling of 82987529 in words is "eighty-two million, nine hundred eighty-seven thousand, five hundred twenty-nine".