83865011 has 4 divisors (see below), whose sum is σ = 84191592. Its totient is φ = 83538432.

The previous prime is 83864983. The next prime is 83865017. The reversal of 83865011 is 11056838.

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 83865011 - 2¹⁴ = 83848627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83865017) 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, 162905 + ... + 163418.

It is an arithmetic number, because the mean of its divisors is an integer number (21047898).

Almost surely, 2^83865011 is an apocalyptic number.

83865011 is a deficient number, since it is larger than the sum of its proper divisors (326581).

83865011 is a wasteful number, since it uses less digits than its factorization.

83865011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326580.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 83865011 is about 9157.7841752249. The cubic root of 83865011 is about 437.7171902294.

The spelling of 83865011 in words is "eighty-three million, eight hundred sixty-five thousand, eleven".