2772822 has 32 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 807840.

The previous prime is 2772767. The next prime is 2772827. The reversal of 2772822 is 2282772.

It is a self number, because there is not a number n which added to its sum of digits gives 2772822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^2772822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2772822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3144960).

2772822 is an abundant number, since it is smaller than the sum of its proper divisors (3517098).

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

2772822 is a wasteful number, since it uses less digits than its factorization.

2772822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908.

The product of its digits is 6272, while the sum is 30.

The square root of 2772822 is about 1665.1792696283. The cubic root of 2772822 is about 140.4884638223.

It can be divided in two parts, 27728 and 22, that multiplied together give a palindrome (610016).

The spelling of 2772822 in words is "two million, seven hundred seventy-two thousand, eight hundred twenty-two".