3649825 has 12 divisors (see below), whose sum is σ = 4595440. Its totient is φ = 2874960.

The previous prime is 3649777. The next prime is 3649831. The reversal of 3649825 is 5289463.

3649825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3649825 - 2⁹ = 3649313 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 3¹³ + 6⁴ + 4⁸ + 9³ + 8⁵ + 2¹¹ + 5⁹ .

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 11 ways as a sum of consecutive naturals, for example, 586 + ... + 2764.

Almost surely, 2^3649825 is an apocalyptic number.

It is an amenable number.

3649825 is a deficient number, since it is larger than the sum of its proper divisors (945615).

3649825 is a wasteful number, since it uses less digits than its factorization.

3649825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2251 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 3649825 is about 1910.4515173121. The cubic root of 3649825 is about 153.9657117118.

The spelling of 3649825 in words is "three million, six hundred forty-nine thousand, eight hundred twenty-five".