8642818 has 8 divisors (see below), whose sum is σ = 13085712. Its totient is φ = 4280916.

The previous prime is 8642773. The next prime is 8642819. The reversal of 8642818 is 8182468.

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

It is a super-2 number, since 2×8642818² = 149396605962248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8642819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19980 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (1635714).

Almost surely, 2^8642818 is an apocalyptic number.

8642818 is a deficient number, since it is larger than the sum of its proper divisors (4442894).

8642818 is a wasteful number, since it uses less digits than its factorization.

8642818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40496.

The product of its digits is 24576, while the sum is 37.

The square root of 8642818 is about 2939.8670037946. The cubic root of 8642818 is about 205.2194200291.

The spelling of 8642818 in words is "eight million, six hundred forty-two thousand, eight hundred eighteen".