3686433 has 24 divisors (see below), whose sum is σ = 5458464. Its totient is φ = 2204160.

The previous prime is 3686411. The next prime is 3686447. The reversal of 3686433 is 3346863.

It is not a de Polignac number, because 3686433 - 2⁵ = 3686401 is a prime.

It is a Curzon number.

3686433 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3686394 and 3686403.

It is not an unprimeable number, because it can be changed into a prime (3686483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85710 + ... + 85752.

It is an arithmetic number, because the mean of its divisors is an integer number (227436).

Almost surely, 2^3686433 is an apocalyptic number.

It is an amenable number.

3686433 is a deficient number, since it is larger than the sum of its proper divisors (1772031).

3686433 is a wasteful number, since it uses less digits than its factorization.

3686433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 104 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 3686433 is about 1920.0085937308. The cubic root of 3686433 is about 154.4787624897.

Subtracting from 3686433 its sum of digits (33), we obtain a square (3686400 = 1920²).

The spelling of 3686433 in words is "three million, six hundred eighty-six thousand, four hundred thirty-three".