8937218 has 4 divisors (see below), whose sum is σ = 13405830. Its totient is φ = 4468608.

The previous prime is 8937211. The next prime is 8937233. The reversal of 8937218 is 8127398.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8127398 = 2 ⋅4063699.

It can be written as a sum of positive squares in only one way, i.e., 7689529 + 1247689 = 2773^2 + 1117^2 .

It is not an unprimeable number, because it can be changed into a prime (8937211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2234303 + ... + 2234306.

Almost surely, 2^8937218 is an apocalyptic number.

8937218 is a deficient number, since it is larger than the sum of its proper divisors (4468612).

8937218 is a wasteful number, since it uses less digits than its factorization.

8937218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468611.

The product of its digits is 24192, while the sum is 38.

The square root of 8937218 is about 2989.5180213539. The cubic root of 8937218 is about 207.5235798432.

The spelling of 8937218 in words is "eight million, nine hundred thirty-seven thousand, two hundred eighteen".