8634818 has 4 divisors (see below), whose sum is σ = 12952230. Its totient is φ = 4317408.

The previous prime is 8634811. The next prime is 8634823. The reversal of 8634818 is 8184368.

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., 8254129 + 380689 = 2873^2 + 617^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8634811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2158703 + ... + 2158706.

Almost surely, 2^8634818 is an apocalyptic number.

8634818 is a deficient number, since it is larger than the sum of its proper divisors (4317412).

8634818 is a wasteful number, since it uses less digits than its factorization.

8634818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317411.

The product of its digits is 36864, while the sum is 38.

The square root of 8634818 is about 2938.5060830293. The cubic root of 8634818 is about 205.1560818073.

The spelling of 8634818 in words is "eight million, six hundred thirty-four thousand, eight hundred eighteen".