8560981 has 16 divisors (see below), whose sum is σ = 10156608. Its totient is φ = 7113600.

The previous prime is 8560961. The next prime is 8561011. The reversal of 8560981 is 1890658.

It is the 1195-th star number.

It is not a de Polignac number, because 8560981 - 2¹¹ = 8558933 is a prime.

It is a super-2 number, since 2×8560981² = 146580791364722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8560981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8560961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18505 + ... + 18961.

It is an arithmetic number, because the mean of its divisors is an integer number (634788).

Almost surely, 2^8560981 is an apocalyptic number.

It is an amenable number.

8560981 is a deficient number, since it is larger than the sum of its proper divisors (1595627).

8560981 is a wasteful number, since it uses less digits than its factorization.

8560981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 8560981 is about 2925.9154123112. The cubic root of 8560981 is about 204.5696385083.

The spelling of 8560981 in words is "eight million, five hundred sixty thousand, nine hundred eighty-one".