8500011 has 16 divisors (see below), whose sum is σ = 12848640. Its totient is φ = 4955040.

The previous prime is 8500007. The next prime is 8500021. The reversal of 8500011 is 1100058.

It is a happy number.

It is not a de Polignac number, because 8500011 - 2² = 8500007 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500021) 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 15 ways as a sum of consecutive naturals, for example, 4995 + ... + 6476.

It is an arithmetic number, because the mean of its divisors is an integer number (803040).

Almost surely, 2^8500011 is an apocalyptic number.

8500011 is a deficient number, since it is larger than the sum of its proper divisors (4348629).

8500011 is a wasteful number, since it uses less digits than its factorization.

8500011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 8500011 is about 2915.4778339065. The cubic root of 8500011 is about 204.0828431315.

Adding to 8500011 its reverse (1100058), we get a palindrome (9600069).

The spelling of 8500011 in words is "eight million, five hundred thousand, eleven".