3809225 has 12 divisors (see below), whose sum is σ = 5398464. Its totient is φ = 2611920.

The previous prime is 3809189. The next prime is 3809251. The reversal of 3809225 is 5229083.

It is not a de Polignac number, because 3809225 - 2⁶ = 3809161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10709 + ... + 11058.

It is an arithmetic number, because the mean of its divisors is an integer number (449872).

Almost surely, 2^3809225 is an apocalyptic number.

3809225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3809225 is a deficient number, since it is larger than the sum of its proper divisors (1589239).

3809225 is a wasteful number, since it uses less digits than its factorization.

3809225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784 (or 21779 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3809225 is about 1951.7235972340. The cubic root of 3809225 is about 156.1752495782.

The spelling of 3809225 in words is "three million, eight hundred nine thousand, two hundred twenty-five".