84816849 has 16 divisors (see below), whose sum is σ = 123334400. Its totient is φ = 51532416.

The previous prime is 84816803. The next prime is 84816857. The reversal of 84816849 is 94861848.

It is not a de Polignac number, because 84816849 - 2⁸ = 84816593 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84816798 and 84816807.

It is not an unprimeable number, because it can be changed into a prime (84816889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684 + ... + 16845.

It is an arithmetic number, because the mean of its divisors is an integer number (7708400).

Almost surely, 2^84816849 is an apocalyptic number.

It is an amenable number.

84816849 is a deficient number, since it is larger than the sum of its proper divisors (38517551).

84816849 is a wasteful number, since it uses less digits than its factorization.

84816849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27624.

The product of its digits is 442368, while the sum is 48.

The square root of 84816849 is about 9209.6063433786. The cubic root of 84816849 is about 439.3669425762.

The spelling of 84816849 in words is "eighty-four million, eight hundred sixteen thousand, eight hundred forty-nine".