84512011 has 4 divisors (see below), whose sum is σ = 85530312. Its totient is φ = 83493712.

The previous prime is 84512009. The next prime is 84512017. The reversal of 84512011 is 11021548.

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

It is a cyclic number.

It is not a de Polignac number, because 84512011 - 2¹ = 84512009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84512017) 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 in 3 ways as a sum of consecutive naturals, for example, 509026 + ... + 509191.

It is an arithmetic number, because the mean of its divisors is an integer number (21382578).

Almost surely, 2^84512011 is an apocalyptic number.

84512011 is a deficient number, since it is larger than the sum of its proper divisors (1018301).

84512011 is a wasteful number, since it uses less digits than its factorization.

84512011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018300.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 84512011 is about 9193.0414444840. The cubic root of 84512011 is about 438.8399383269.

Adding to 84512011 its reverse (11021548), we get a palindrome (95533559).

The spelling of 84512011 in words is "eighty-four million, five hundred twelve thousand, eleven".