3686457 has 8 divisors (see below), whose sum is σ = 4944384. Its totient is φ = 2443088.

The previous prime is 3686447. The next prime is 3686477. The reversal of 3686457 is 7546863.

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 3686457 - 2⁷ = 3686329 is a prime.

It is a d-powerful number, because it can be written as 3² + 6² + 8⁵ + 6⁸ + 4⁶ + 5⁹ + 7⁵ .

It is not an unprimeable number, because it can be changed into a prime (3686447) 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, 3033 + ... + 4070.

It is an arithmetic number, because the mean of its divisors is an integer number (618048).

Almost surely, 2^3686457 is an apocalyptic number.

It is an amenable number.

3686457 is a deficient number, since it is larger than the sum of its proper divisors (1257927).

3686457 is a wasteful number, since it uses less digits than its factorization.

3686457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279.

The product of its digits is 120960, while the sum is 39.

The square root of 3686457 is about 1920.0148436926. The cubic root of 3686457 is about 154.4790977263.

The spelling of 3686457 in words is "three million, six hundred eighty-six thousand, four hundred fifty-seven".