3851686 has 8 divisors (see below), whose sum is σ = 5785920. Its totient is φ = 1923048.

The previous prime is 3851677. The next prime is 3851689. The reversal of 3851686 is 6861583.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3851689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (723240).

Almost surely, 2^3851686 is an apocalyptic number.

3851686 is a deficient number, since it is larger than the sum of its proper divisors (1934234).

3851686 is a wasteful number, since it uses less digits than its factorization.

3851686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798.

The product of its digits is 34560, while the sum is 37.

The square root of 3851686 is about 1962.5712725911. The cubic root of 3851686 is about 156.7533959703.

The spelling of 3851686 in words is "three million, eight hundred fifty-one thousand, six hundred eighty-six".