8642918 has 16 divisors (see below), whose sum is σ = 13214880. Its totient is φ = 4238976.

The previous prime is 8642911. The next prime is 8642927. The reversal of 8642918 is 8192468.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37628 + ... + 37856.

It is an arithmetic number, because the mean of its divisors is an integer number (825930).

Almost surely, 2^8642918 is an apocalyptic number.

8642918 is a deficient number, since it is larger than the sum of its proper divisors (4571962).

8642918 is a wasteful number, since it uses less digits than its factorization.

8642918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its digits is 27648, while the sum is 38.

The square root of 8642918 is about 2939.8840113175. The cubic root of 8642918 is about 205.2202115095.

The spelling of 8642918 in words is "eight million, six hundred forty-two thousand, nine hundred eighteen".