8731296 has 144 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 2419200.

The previous prime is 8731277. The next prime is 8731301. The reversal of 8731296 is 6921378.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is one of the 548 Lynch-Bell numbers.

Its product of digits (18144) is a multiple of the sum of its prime divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 8731296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122941 + ... + 123011.

It is an arithmetic number, because the mean of its divisors is an integer number (203112).

Almost surely, 2^8731296 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 8731296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064).

8731296 is an abundant number, since it is smaller than the sum of its proper divisors (20516832).

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

8731296 is a wasteful number, since it uses less digits than its factorization.

8731296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 144 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 8731296 is about 2954.8766471716. The cubic root of 8731296 is about 205.9173325888.

The spelling of 8731296 in words is "eight million, seven hundred thirty-one thousand, two hundred ninety-six".