8997744 has 80 divisors (see below), whose sum is σ = 27061760. Its totient is φ = 2522880.

The previous prime is 8997733. The next prime is 8997767. The reversal of 8997744 is 4477998.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 8997693 and 8997702.

It is a congruent number.

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, 20277 + ... + 20715.

It is an arithmetic number, because the mean of its divisors is an integer number (338272).

Almost surely, 2^8997744 is an apocalyptic number.

8997744 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8997744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13530880).

8997744 is an abundant number, since it is smaller than the sum of its proper divisors (18064016).

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

8997744 is a wasteful number, since it uses less digits than its factorization.

8997744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 512 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 8997744 is about 2999.6239764344. The cubic root of 8997744 is about 207.9910005968.

The spelling of 8997744 in words is "eight million, nine hundred ninety-seven thousand, seven hundred forty-four".