8918861 has 8 divisors (see below), whose sum is σ = 10410240. Its totient is φ = 7481808.

The previous prime is 8918857. The next prime is 8918869. The reversal of 8918861 is 1688198.

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 8918861 - 2² = 8918857 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8918869) 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, 13226 + ... + 13883.

It is an arithmetic number, because the mean of its divisors is an integer number (1301280).

Almost surely, 2^8918861 is an apocalyptic number.

It is an amenable number.

8918861 is a deficient number, since it is larger than the sum of its proper divisors (1491379).

8918861 is a wasteful number, since it uses less digits than its factorization.

8918861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27163.

The product of its digits is 27648, while the sum is 41.

The square root of 8918861 is about 2986.4462158224. The cubic root of 8918861 is about 207.3813983286.

It can be divided in two parts, 8918 and 861, that added together give a palindrome (9779).

The spelling of 8918861 in words is "eight million, nine hundred eighteen thousand, eight hundred sixty-one".