3818 has 8 divisors (see below), whose sum is σ = 6048. Its totient is φ = 1804.

The previous prime is 3803. The next prime is 3821. The reversal of 3818 is 8183.

3818 = 12² + 13² + ... + 23².

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 3818.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3818.

It is an unprimeable number.

3818 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 87.

It is an arithmetic number, because the mean of its divisors is an integer number (756).

3818 is a deficient number, since it is larger than the sum of its proper divisors (2230).

3818 is a wasteful number, since it uses less digits than its factorization.

3818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its digits is 192, while the sum is 20.

The square root of 3818 is about 61.7899668231. The cubic root of 3818 is about 15.6295080326.

The spelling of 3818 in words is "three thousand, eight hundred eighteen".