8742822 has 32 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 2627520.

The previous prime is 8742821. The next prime is 8742847. The reversal of 8742822 is 2282478.

8742822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742821) 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, 8698 + ... + 9650.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 2^8742822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8742822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9616320).

8742822 is an abundant number, since it is smaller than the sum of its proper divisors (10489818).

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

8742822 is a wasteful number, since it uses less digits than its factorization.

8742822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its digits is 14336, while the sum is 33.

The square root of 8742822 is about 2956.8263391684. The cubic root of 8742822 is about 206.0079017926.

The spelling of 8742822 in words is "eight million, seven hundred forty-two thousand, eight hundred twenty-two".