4086818 has 4 divisors (see below), whose sum is σ = 6130230. Its totient is φ = 2043408.

The previous prime is 4086811. The next prime is 4086821. The reversal of 4086818 is 8186804.

4086818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2229049 + 1857769 = 1493^2 + 1363^2 .

It is not an unprimeable number, because it can be changed into a prime (4086811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021703 + ... + 1021706.

Almost surely, 2^4086818 is an apocalyptic number.

4086818 is a deficient number, since it is larger than the sum of its proper divisors (2043412).

4086818 is a wasteful number, since it uses less digits than its factorization.

4086818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043411.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 4086818 is about 2021.5879896754. The cubic root of 4086818 is about 159.8803532597.

The spelling of 4086818 in words is "four million, eighty-six thousand, eight hundred eighteen".