83856311 has 16 divisors (see below), whose sum is σ = 105815808. Its totient is φ = 64550400.

The previous prime is 83856299. The next prime is 83856323. The reversal of 83856311 is 11365838.

It is an interprime number because it is at equal distance from previous prime (83856299) and next prime (83856323).

It is a cyclic number.

It is not a de Polignac number, because 83856311 - 2⁶ = 83856247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83856811) 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 15 ways as a sum of consecutive naturals, for example, 170 + ... + 12951.

It is an arithmetic number, because the mean of its divisors is an integer number (6613488).

Almost surely, 2^83856311 is an apocalyptic number.

83856311 is a deficient number, since it is larger than the sum of its proper divisors (21959497).

83856311 is a wasteful number, since it uses less digits than its factorization.

83856311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13222.

The product of its digits is 17280, while the sum is 35.

The square root of 83856311 is about 9157.3091571706. The cubic root of 83856311 is about 437.7020537174.

The spelling of 83856311 in words is "eighty-three million, eight hundred fifty-six thousand, three hundred eleven".