3686319 has 36 divisors (see below), whose sum is σ = 6680856. Its totient is φ = 1941408.

The previous prime is 3686299. The next prime is 3686321. The reversal of 3686319 is 9136863.

It is a happy number.

It is not a de Polignac number, because 3686319 - 2⁸ = 3686063 is a prime.

It is a super-2 number, since 2×3686319² = 27177895539522, which contains 22 as substring.

3686319 is a lucky number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5412 + ... + 6054.

Almost surely, 2^3686319 is an apocalyptic number.

3686319 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3686319 is a deficient number, since it is larger than the sum of its proper divisors (2994537).

3686319 is a wasteful number, since it uses less digits than its factorization.

3686319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 666 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3686319 is about 1919.9789061341. The cubic root of 3686319 is about 154.4771700957.

It can be divided in two parts, 3686 and 319, that added together give a triangular number (4005 = T₈₉).

The spelling of 3686319 in words is "three million, six hundred eighty-six thousand, three hundred nineteen".