3806684638 has 8 divisors (see below), whose sum is σ = 5719343688. Its totient is φ = 1900236744.

The previous prime is 3806684627. The next prime is 3806684639. The reversal of 3806684638 is 8364866083.

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 (3806684639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551256 + ... + 1553707.

It is an arithmetic number, because the mean of its divisors is an integer number (714917961).

Almost surely, 2^3806684638 is an apocalyptic number.

3806684638 is a deficient number, since it is larger than the sum of its proper divisors (1912659050).

3806684638 is a wasteful number, since it uses less digits than its factorization.

3806684638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105578.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The square root of 3806684638 is about 61698.3357798247. The cubic root of 3806684638 is about 1561.4052423844.

The spelling of 3806684638 in words is "three billion, eight hundred six million, six hundred eighty-four thousand, six hundred thirty-eight".