8427748 has 48 divisors (see below), whose sum is σ = 17781120. Its totient is φ = 3419136.

The previous prime is 8427739. The next prime is 8427751. The reversal of 8427748 is 8477248.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8427748.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78711 + ... + 78817.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^8427748 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 8427748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8890560).

8427748 is an abundant number, since it is smaller than the sum of its proper divisors (9353372).

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

8427748 is a wasteful number, since it uses less digits than its factorization.

8427748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 8427748 is about 2903.0583872874. The cubic root of 8427748 is about 203.5028584136.

The spelling of 8427748 in words is "eight million, four hundred twenty-seven thousand, seven hundred forty-eight".