3648025 has 12 divisors (see below), whose sum is σ = 4547452. Its totient is φ = 2903040.

The previous prime is 3647989. The next prime is 3648031. The reversal of 3648025 is 5208463.

It can be written as a sum of positive squares in 6 ways, for example, as 788544 + 2859481 = 888^2 + 1691^2 .

It is not a de Polignac number, because 3648025 - 2¹¹ = 3645977 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3647984 and 3648002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8209 + ... + 8641.

Almost surely, 2^3648025 is an apocalyptic number.

It is an amenable number.

3648025 is a deficient number, since it is larger than the sum of its proper divisors (899427).

3648025 is a wasteful number, since it uses less digits than its factorization.

3648025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3648025 is about 1909.9803663912. The cubic root of 3648025 is about 153.9403969042.

The spelling of 3648025 in words is "three million, six hundred forty-eight thousand, twenty-five".