7066789 has 4 divisors (see below), whose sum is σ = 7182700. Its totient is φ = 6950880.

The previous prime is 7066777. The next prime is 7066799. The reversal of 7066789 is 9876607.

7066789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9876607 = 13 ⋅759739.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 4452100 = 1617^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 7066789 - 2⁹ = 7066277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066739) 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 3 ways as a sum of consecutive naturals, for example, 57864 + ... + 57985.

It is an arithmetic number, because the mean of its divisors is an integer number (1795675).

Almost surely, 2^7066789 is an apocalyptic number.

It is an amenable number.

7066789 is a deficient number, since it is larger than the sum of its proper divisors (115911).

7066789 is a wasteful number, since it uses less digits than its factorization.

7066789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115910.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 7066789 is about 2658.3432810681. The cubic root of 7066789 is about 191.8995876140.

It can be divided in two parts, 70667 and 89, that added together give a square (70756 = 266²).

The spelling of 7066789 in words is "seven million, sixty-six thousand, seven hundred eighty-nine".