83800011 has 4 divisors (see below), whose sum is σ = 111733352. Its totient is φ = 55866672.

The previous prime is 83800007. The next prime is 83800033. The reversal of 83800011 is 11000838.

It is a happy number.

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

It is not a de Polignac number, because 83800011 - 2² = 83800007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83800411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13966666 + ... + 13966671.

It is an arithmetic number, because the mean of its divisors is an integer number (27933338).

Almost surely, 2^83800011 is an apocalyptic number.

83800011 is a deficient number, since it is larger than the sum of its proper divisors (27933341).

83800011 is a wasteful number, since it uses less digits than its factorization.

83800011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27933340.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 83800011 is about 9154.2345938915. The cubic root of 83800011 is about 437.6040760287.

Adding to 83800011 its reverse (11000838), we get a palindrome (94800849).

The spelling of 83800011 in words is "eighty-three million, eight hundred thousand, eleven".