3686338 has 4 divisors (see below), whose sum is σ = 5529510. Its totient is φ = 1843168.

The previous prime is 3686329. The next prime is 3686339. The reversal of 3686338 is 8336863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8336863 = 379 ⋅21997.

It can be written as a sum of positive squares in only one way, i.e., 3674889 + 11449 = 1917^2 + 107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3686297 and 3686306.

It is not an unprimeable number, because it can be changed into a prime (3686339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921583 + ... + 921586.

Almost surely, 2^3686338 is an apocalyptic number.

3686338 is a deficient number, since it is larger than the sum of its proper divisors (1843172).

3686338 is a wasteful number, since it uses less digits than its factorization.

3686338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843171.

The product of its digits is 62208, while the sum is 37.

The square root of 3686338 is about 1919.9838540988. The cubic root of 3686338 is about 154.4774354970.

The spelling of 3686338 in words is "three million, six hundred eighty-six thousand, three hundred thirty-eight".