3189818 has 4 divisors (see below), whose sum is σ = 4784730. Its totient is φ = 1594908.

The previous prime is 3189811. The next prime is 3189821. The reversal of 3189818 is 8189813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8189813 = 239 ⋅34267.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 683929 = 1583^2 + 827^2 .

It is not an unprimeable number, because it can be changed into a prime (3189811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797453 + ... + 797456.

Almost surely, 2^3189818 is an apocalyptic number.

3189818 is a deficient number, since it is larger than the sum of its proper divisors (1594912).

3189818 is a wasteful number, since it uses less digits than its factorization.

3189818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594911.

The product of its digits is 13824, while the sum is 38.

The square root of 3189818 is about 1786.0061590039. The cubic root of 3189818 is about 147.2047988452.

The spelling of 3189818 in words is "three million, one hundred eighty-nine thousand, eight hundred eighteen".