84849647 has 2 divisors, whose sum is σ = 84849648. Its totient is φ = 84849646.

The previous prime is 84849607. The next prime is 84849701. The reversal of 84849647 is 74694848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84849647 - 2¹⁴ = 84833263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84849595 and 84849604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84849607) 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, 42424823 + 42424824.

It is an arithmetic number, because the mean of its divisors is an integer number (42424824).

Almost surely, 2^84849647 is an apocalyptic number.

84849647 is a deficient number, since it is larger than the sum of its proper divisors (1).

84849647 is an equidigital number, since it uses as much as digits as its factorization.

84849647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 50.

The square root of 84849647 is about 9211.3868119844. The cubic root of 84849647 is about 439.4235685104.

The spelling of 84849647 in words is "eighty-four million, eight hundred forty-nine thousand, six hundred forty-seven".