8734720 has 48 divisors (see below), whose sum is σ = 20982780. Its totient is φ = 3489792.

The previous prime is 8734697. The next prime is 8734729. The reversal of 8734720 is 274378.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 984064 = 2784^2 + 992^2 .

It is not an unprimeable number, because it can be changed into a prime (8734729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9814 + ... + 10666.

Almost surely, 2^8734720 is an apocalyptic number.

8734720 is a gapful number since it is divisible by the number (80) 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 8734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10491390).

8734720 is an abundant number, since it is smaller than the sum of its proper divisors (12248060).

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

8734720 is an equidigital number, since it uses as much as digits as its factorization.

8734720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 8734720 is about 2955.4559715888. The cubic root of 8734720 is about 205.9442460735.

The spelling of 8734720 in words is "eight million, seven hundred thirty-four thousand, seven hundred twenty".