3863686 has 4 divisors (see below), whose sum is σ = 5795532. Its totient is φ = 1931842.

The previous prime is 3863683. The next prime is 3863687. The reversal of 3863686 is 6863683.

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 (3863681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965920 + ... + 965923.

It is an arithmetic number, because the mean of its divisors is an integer number (1448883).

Almost surely, 2^3863686 is an apocalyptic number.

3863686 is a deficient number, since it is larger than the sum of its proper divisors (1931846).

3863686 is a wasteful number, since it uses less digits than its factorization.

3863686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931845.

The product of its digits is 124416, while the sum is 40.

The square root of 3863686 is about 1965.6261089027. The cubic root of 3863686 is about 156.9160165866.

The spelling of 3863686 in words is "three million, eight hundred sixty-three thousand, six hundred eighty-six".