8727320 has 64 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 2943360.

The previous prime is 8727317. The next prime is 8727343. The reversal of 8727320 is 237278.

8727320 = 315² + 316² + ... + 385².

It is a super-2 number, since 2×8727320² = 152332228764800, which contains 22 as substring.

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, 19661 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^8727320 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 8727320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11404800).

8727320 is an abundant number, since it is smaller than the sum of its proper divisors (14082280).

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

8727320 is a wasteful number, since it uses less digits than its factorization.

8727320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 8727320 is about 2954.2037844401. The cubic root of 8727320 is about 205.8860714174.

It can be divided in two parts, 872 and 7320, that added together give a 13-th power (8192 = 2¹³).

The spelling of 8727320 in words is "eight million, seven hundred twenty-seven thousand, three hundred twenty".