8541720 has 128 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 2067840.

The previous prime is 8541713. The next prime is 8541721. The reversal of 8541720 is 271458.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8541721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11521 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (243000).

Almost surely, 2^8541720 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 8541720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15552000).

8541720 is an abundant number, since it is smaller than the sum of its proper divisors (22562280).

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

8541720 is a wasteful number, since it uses less digits than its factorization.

8541720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 8541720 is about 2922.6221103660. The cubic root of 8541720 is about 204.4161056954.

It can be divided in two parts, 8541 and 720, that added together give a cube (9261 = 21³).

The spelling of 8541720 in words is "eight million, five hundred forty-one thousand, seven hundred twenty".