3686947 has 8 divisors (see below), whose sum is σ = 4036032. Its totient is φ = 3340200.

The previous prime is 3686941. The next prime is 3686951. The reversal of 3686947 is 7496863.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3686947 - 2¹⁵ = 3654179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3686941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5988 + ... + 6574.

It is an arithmetic number, because the mean of its divisors is an integer number (504504).

Almost surely, 2^3686947 is an apocalyptic number.

3686947 is a deficient number, since it is larger than the sum of its proper divisors (349085).

3686947 is a wasteful number, since it uses less digits than its factorization.

3686947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its digits is 217728, while the sum is 43.

The square root of 3686947 is about 1920.1424426328. The cubic root of 3686947 is about 154.4859418230.

The spelling of 3686947 in words is "three million, six hundred eighty-six thousand, nine hundred forty-seven".