8722560 has 256 divisors, whose sum is σ = 35251200. Its totient is φ = 1781760.

The previous prime is 8722541. The next prime is 8722603. The reversal of 8722560 is 652278.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147811 + ... + 147869.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

Almost surely, 2^8722560 is an apocalyptic number.

8722560 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 8722560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17625600).

8722560 is an abundant number, since it is smaller than the sum of its proper divisors (26528640).

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

8722560 is a wasteful number, since it uses less digits than its factorization.

8722560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 8722560 is about 2953.3980429329. The cubic root of 8722560 is about 205.8486335814.

The spelling of 8722560 in words is "eight million, seven hundred twenty-two thousand, five hundred sixty".