8660861 has 8 divisors (see below), whose sum is σ = 9470304. Its totient is φ = 7855120.

The previous prime is 8660819. The next prime is 8660863. The reversal of 8660861 is 1680668.

8660861 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8660861 - 2⁶ = 8660797 is a prime.

It is a super-2 number, since 2×8660861² = 150021026522642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6866 + ... + 8028.

It is an arithmetic number, because the mean of its divisors is an integer number (1183788).

Almost surely, 2^8660861 is an apocalyptic number.

It is an amenable number.

8660861 is a deficient number, since it is larger than the sum of its proper divisors (809443).

8660861 is a wasteful number, since it uses less digits than its factorization.

8660861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8660861 is about 2942.9340801316. The cubic root of 8660861 is about 205.3621281253.

The spelling of 8660861 in words is "eight million, six hundred sixty thousand, eight hundred sixty-one".