82222776 has 80 divisors (see below), whose sum is σ = 231739200. Its totient is φ = 27236736.

The previous prime is 82222711. The next prime is 82222783. The reversal of 82222776 is 67722228.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 82222776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144220 + ... + 144788.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^82222776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82222776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115869600).

82222776 is an abundant number, since it is smaller than the sum of its proper divisors (149516424).

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

82222776 is a wasteful number, since it uses less digits than its factorization.

82222776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 797 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 82222776 is about 9067.6775416862. The cubic root of 82222776 is about 434.8412262406.

The spelling of 82222776 in words is "eighty-two million, two hundred twenty-two thousand, seven hundred seventy-six".