8397744 has 40 divisors (see below), whose sum is σ = 22110192. Its totient is φ = 2745600.

The previous prime is 8397721. The next prime is 8397751. The reversal of 8397744 is 4477938.

It is a d-powerful number, because it can be written as 8⁷ + 3⁵ + 9⁶ + 7 + 7⁸ + 4 + 4⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 8397696 and 8397705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894 + ... + 4194.

Almost surely, 2^8397744 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 8397744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11055096).

8397744 is an abundant number, since it is smaller than the sum of its proper divisors (13712448).

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

8397744 is a wasteful number, since it uses less digits than its factorization.

8397744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3359 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 8397744 is about 2897.8861261271. The cubic root of 8397744 is about 203.2610713988.

The spelling of 8397744 in words is "eight million, three hundred ninety-seven thousand, seven hundred forty-four".