8550861 has 16 divisors (see below), whose sum is σ = 12674880. Its totient is φ = 5083520.

The previous prime is 8550859. The next prime is 8550869. The reversal of 8550861 is 1680558.

8550861 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8550861 - 2¹ = 8550859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8550869) 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, 696 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (792180).

Almost surely, 2^8550861 is an apocalyptic number.

It is an amenable number.

8550861 is a deficient number, since it is larger than the sum of its proper divisors (4124019).

8550861 is a wasteful number, since it uses less digits than its factorization.

8550861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 8550861 is about 2924.1855276299. The cubic root of 8550861 is about 204.4889989559.

The spelling of 8550861 in words is "eight million, five hundred fifty thousand, eight hundred sixty-one".