3666025 has 12 divisors (see below), whose sum is σ = 4959504. Its totient is φ = 2666000.

The previous prime is 3666023. The next prime is 3666037. The reversal of 3666025 is 5206663.

It is not a de Polignac number, because 3666025 - 2¹ = 3666023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3665984 and 3666002.

It is not an unprimeable number, because it can be changed into a prime (3666023) by changing a digit.

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, 6391 + ... + 6940.

It is an arithmetic number, because the mean of its divisors is an integer number (413292).

Almost surely, 2^3666025 is an apocalyptic number.

It is an amenable number.

3666025 is a deficient number, since it is larger than the sum of its proper divisors (1293479).

3666025 is a wasteful number, since it uses less digits than its factorization.

3666025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352 (or 13347 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3666025 is about 1914.6866584379. The cubic root of 3666025 is about 154.1931713216.

The spelling of 3666025 in words is "three million, six hundred sixty-six thousand, twenty-five".