3686290 has 16 divisors (see below), whose sum is σ = 6658200. Its totient is φ = 1469440.

The previous prime is 3686251. The next prime is 3686299. The reversal of 3686290 is 926863.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2758921 + 927369 = 1661^2 + 963^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686299) 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, 4080 + ... + 4900.

Almost surely, 2^3686290 is an apocalyptic number.

3686290 is a deficient number, since it is larger than the sum of its proper divisors (2971910).

3686290 is a wasteful number, since it uses less digits than its factorization.

3686290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3686290 is about 1919.9713539530. The cubic root of 3686290 is about 154.4767650078.

The spelling of 3686290 in words is "three million, six hundred eighty-six thousand, two hundred ninety".