82656487 has 2 divisors, whose sum is σ = 82656488. Its totient is φ = 82656486.

The previous prime is 82656461. The next prime is 82656527. The reversal of 82656487 is 78465628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82656487 - 2¹⁵ = 82623719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82656887) 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, 41328243 + 41328244.

It is an arithmetic number, because the mean of its divisors is an integer number (41328244).

Almost surely, 2^82656487 is an apocalyptic number.

82656487 is a deficient number, since it is larger than the sum of its proper divisors (1).

82656487 is an equidigital number, since it uses as much as digits as its factorization.

82656487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

The square root of 82656487 is about 9091.5613070583. The cubic root of 82656487 is about 435.6044567296.

The spelling of 82656487 in words is "eighty-two million, six hundred fifty-six thousand, four hundred eighty-seven".