3649237 has 8 divisors (see below), whose sum is σ = 3905496. Its totient is φ = 3397632.

The previous prime is 3649229. The next prime is 3649241. The reversal of 3649237 is 7329463.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 1535121 = 1454^2 + 1239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3649237 - 2³ = 3649229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649207) 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, 543 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (488187).

Almost surely, 2^3649237 is an apocalyptic number.

It is an amenable number.

3649237 is a deficient number, since it is larger than the sum of its proper divisors (256259).

3649237 is a wasteful number, since it uses less digits than its factorization.

3649237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327.

The product of its digits is 27216, while the sum is 34.

The square root of 3649237 is about 1910.2976207911. The cubic root of 3649237 is about 153.9574431236.

The spelling of 3649237 in words is "three million, six hundred forty-nine thousand, two hundred thirty-seven".