8718418 has 4 divisors (see below), whose sum is σ = 13077630. Its totient is φ = 4359208.

The previous prime is 8718407. The next prime is 8718419. The reversal of 8718418 is 8148178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8148178 = 2 ⋅4074089.

It can be written as a sum of positive squares in only one way, i.e., 5919489 + 2798929 = 2433^2 + 1673^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8718419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2179603 + ... + 2179606.

Almost surely, 2^8718418 is an apocalyptic number.

8718418 is a deficient number, since it is larger than the sum of its proper divisors (4359212).

8718418 is a wasteful number, since it uses less digits than its factorization.

8718418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359211.

The product of its digits is 14336, while the sum is 37.

The square root of 8718418 is about 2952.6967334963. The cubic root of 8718418 is about 205.8160452879.

The spelling of 8718418 in words is "eight million, seven hundred eighteen thousand, four hundred eighteen".