4685218 has 4 divisors (see below), whose sum is σ = 7027830. Its totient is φ = 2342608.

The previous prime is 4685207. The next prime is 4685221. The reversal of 4685218 is 8125864.

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., 3323329 + 1361889 = 1823^2 + 1167^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171303 + ... + 1171306.

Almost surely, 2^4685218 is an apocalyptic number.

4685218 is a deficient number, since it is larger than the sum of its proper divisors (2342612).

4685218 is a wasteful number, since it uses less digits than its factorization.

4685218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342611.

The product of its digits is 15360, while the sum is 34.

The square root of 4685218 is about 2164.5364399797. The cubic root of 4685218 is about 167.3310749613.

It can be divided in two parts, 46 and 85218, that added together give a square (85264 = 292²).

The spelling of 4685218 in words is "four million, six hundred eighty-five thousand, two hundred eighteen".