3686398 has 8 divisors (see below), whose sum is σ = 5647392. Its totient is φ = 1803936.

The previous prime is 3686387. The next prime is 3686401. The reversal of 3686398 is 8936863.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19515 + ... + 19702.

It is an arithmetic number, because the mean of its divisors is an integer number (705924).

Almost surely, 2^3686398 is an apocalyptic number.

3686398 is a deficient number, since it is larger than the sum of its proper divisors (1960994).

3686398 is a wasteful number, since it uses less digits than its factorization.

3686398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39266.

The product of its digits is 186624, while the sum is 43.

The square root of 3686398 is about 1919.9994791666. Note that the first 3 decimals coincide. The cubic root of 3686398 is about 154.4782736003.

The spelling of 3686398 in words is "three million, six hundred eighty-six thousand, three hundred ninety-eight".