3686261 has 8 divisors (see below), whose sum is σ = 3838560. Its totient is φ = 3537072.

The previous prime is 3686251. The next prime is 3686299. The reversal of 3686261 is 1626863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3686261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686251) 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, 1811 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (479820).

Almost surely, 2^3686261 is an apocalyptic number.

It is an amenable number.

3686261 is a deficient number, since it is larger than the sum of its proper divisors (152299).

3686261 is a wasteful number, since it uses less digits than its factorization.

3686261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its digits is 10368, while the sum is 32.

The square root of 3686261 is about 1919.9638017421. The cubic root of 3686261 is about 154.4763599178.

The spelling of 3686261 in words is "three million, six hundred eighty-six thousand, two hundred sixty-one".