3649333 has 4 divisors (see below), whose sum is σ = 3654828. Its totient is φ = 3643840.

The previous prime is 3649313. The next prime is 3649337. The reversal of 3649333 is 3339463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3339463 = 17 ⋅196439.

It can be written as a sum of positive squares in 2 ways, for example, as 966289 + 2683044 = 983^2 + 1638^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649333 - 2⁵ = 3649301 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3649295 and 3649304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (913707).

Almost surely, 2^3649333 is an apocalyptic number.

It is an amenable number.

3649333 is a deficient number, since it is larger than the sum of its proper divisors (5495).

3649333 is an equidigital number, since it uses as much as digits as its factorization.

3649333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494.

The product of its digits is 17496, while the sum is 31.

The square root of 3649333 is about 1910.3227476005. The cubic root of 3649333 is about 153.9587931578.

The spelling of 3649333 in words is "three million, six hundred forty-nine thousand, three hundred thirty-three".