83865222 has 96 divisors (see below), whose sum is σ = 222064128. Its totient is φ = 22353408.

The previous prime is 83865217. The next prime is 83865227. The reversal of 83865222 is 22256838.

It is an interprime number because it is at equal distance from previous prime (83865217) and next prime (83865227).

It is a super-2 number, since 2×83865222² = 14066750922218568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83865227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124278 + ... + 124950.

It is an arithmetic number, because the mean of its divisors is an integer number (2313168).

Almost surely, 2^83865222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83865222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111032064).

83865222 is an abundant number, since it is smaller than the sum of its proper divisors (138198906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83865222 is a wasteful number, since it uses less digits than its factorization.

83865222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 751 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 83865222 is about 9157.7956954717. The cubic root of 83865222 is about 437.7175573203.

The spelling of 83865222 in words is "eighty-three million, eight hundred sixty-five thousand, two hundred twenty-two".