7666825 has 12 divisors (see below), whose sum is σ = 9639388. Its totient is φ = 6048000.

The previous prime is 7666819. The next prime is 7666849. The reversal of 7666825 is 5286667.

It can be written as a sum of positive squares in 6 ways, for example, as 1056784 + 6610041 = 1028^2 + 2571^2 .

It is not a de Polignac number, because 7666825 - 2⁹ = 7666313 is a prime.

It is a Duffinian number.

It is a congruent 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, 276 + ... + 3925.

Almost surely, 2^7666825 is an apocalyptic number.

It is an amenable number.

7666825 is a deficient number, since it is larger than the sum of its proper divisors (1972563).

7666825 is a wasteful number, since it uses less digits than its factorization.

7666825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284 (or 4279 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 7666825 is about 2768.9032124652. The cubic root of 7666825 is about 197.1840807313.

The spelling of 7666825 in words is "seven million, six hundred sixty-six thousand, eight hundred twenty-five".