3818686 has 4 divisors (see below), whose sum is σ = 5728032. Its totient is φ = 1909342.

The previous prime is 3818681. The next prime is 3818687. The reversal of 3818686 is 6868183.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954670 + ... + 954673.

It is an arithmetic number, because the mean of its divisors is an integer number (1432008).

Almost surely, 2^3818686 is an apocalyptic number.

3818686 is a deficient number, since it is larger than the sum of its proper divisors (1909346).

3818686 is a wasteful number, since it uses less digits than its factorization.

3818686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909345.

The product of its digits is 55296, while the sum is 40.

The square root of 3818686 is about 1954.1458492139. The cubic root of 3818686 is about 156.3044405496.

The spelling of 3818686 in words is "three million, eight hundred eighteen thousand, six hundred eighty-six".