3251649 has 8 divisors (see below), whose sum is σ = 4346752. Its totient is φ = 2162160.

The previous prime is 3251609. The next prime is 3251653. The reversal of 3251649 is 9461523.

3251649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3251649 - 2⁹ = 3251137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3251609) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 219 + ... + 2559.

It is an arithmetic number, because the mean of its divisors is an integer number (543344).

Almost surely, 2^3251649 is an apocalyptic number.

It is an amenable number.

3251649 is a deficient number, since it is larger than the sum of its proper divisors (1095103).

3251649 is a wasteful number, since it uses less digits than its factorization.

3251649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807.

The product of its digits is 6480, while the sum is 30.

The square root of 3251649 is about 1803.2329300454. The cubic root of 3251649 is about 148.1498512667.

It can be divided in two parts, 32 and 51649, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 3251649 in words is "three million, two hundred fifty-one thousand, six hundred forty-nine".