3280625 has 20 divisors (see below), whose sum is σ = 4264260. Its totient is φ = 2520000.

The previous prime is 3280621. The next prime is 3280639. The reversal of 3280625 is 5260823.

3280625 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 10 ways, for example, as 3182656 + 97969 = 1784^2 + 313^2 .

It is not a de Polignac number, because 3280625 - 2² = 3280621 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3280594 and 3280603.

It is not an unprimeable number, because it can be changed into a prime (3280621) 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 19 ways as a sum of consecutive naturals, for example, 18035 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (213213).

Almost surely, 2^3280625 is an apocalyptic number.

It is an amenable number.

3280625 is a deficient number, since it is larger than the sum of its proper divisors (983635).

3280625 is an equidigital number, since it uses as much as digits as its factorization.

3280625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 3280625 is about 1811.2495686680. The cubic root of 3280625 is about 148.5886134232.

The spelling of 3280625 in words is "three million, two hundred eighty thousand, six hundred twenty-five".