8673818 has 4 divisors (see below), whose sum is σ = 13010730. Its totient is φ = 4336908.

The previous prime is 8673817. The next prime is 8673839. The reversal of 8673818 is 8183768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6620329 + 2053489 = 2573^2 + 1433^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8673817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2168453 + ... + 2168456.

Almost surely, 2^8673818 is an apocalyptic number.

8673818 is a deficient number, since it is larger than the sum of its proper divisors (4336912).

8673818 is a wasteful number, since it uses less digits than its factorization.

8673818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336911.

The product of its digits is 64512, while the sum is 41.

The square root of 8673818 is about 2945.1346318972. The cubic root of 8673818 is about 205.4644871274.

The spelling of 8673818 in words is "eight million, six hundred seventy-three thousand, eight hundred eighteen".