3649736 has 16 divisors (see below), whose sum is σ = 6912540. Its totient is φ = 1806400.

The previous prime is 3649699. The next prime is 3649741. The reversal of 3649736 is 6379463.

It is a happy number.

3649736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3632836 + 16900 = 1906^2 + 130^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3649736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451 + ... + 3066.

Almost surely, 2^3649736 is an apocalyptic number.

It is an amenable number.

3649736 is a deficient number, since it is larger than the sum of its proper divisors (3262804).

3649736 is a wasteful number, since it uses less digits than its factorization.

3649736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624 (or 4620 counting only the distinct ones).

The product of its digits is 81648, while the sum is 38.

The square root of 3649736 is about 1910.4282242471. The cubic root of 3649736 is about 153.9644602308.

The spelling of 3649736 in words is "three million, six hundred forty-nine thousand, seven hundred thirty-six".