84840011 has 4 divisors (see below), whose sum is σ = 84969024. Its totient is φ = 84711000.

The previous prime is 84839999. The next prime is 84840043. The reversal of 84840011 is 11004848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84840011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84840071) 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 3 ways as a sum of consecutive naturals, for example, 63515 + ... + 64836.

It is an arithmetic number, because the mean of its divisors is an integer number (21242256).

Almost surely, 2^84840011 is an apocalyptic number.

84840011 is a deficient number, since it is larger than the sum of its proper divisors (129013).

84840011 is a wasteful number, since it uses less digits than its factorization.

84840011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129012.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 84840011 is about 9210.8637488566. The cubic root of 84840011 is about 439.4069334154.

Adding to 84840011 its reverse (11004848), we get a palindrome (95844859).

The spelling of 84840011 in words is "eighty-four million, eight hundred forty thousand, eleven".