6672789 has 12 divisors (see below), whose sum is σ = 10205676. Its totient is φ = 4186752.

The previous prime is 6672779. The next prime is 6672797. The reversal of 6672789 is 9872766.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5130225 + 1542564 = 2265^2 + 1242^2 .

It is not a de Polignac number, because 6672789 - 2⁴ = 6672773 is a prime.

It is a super-2 number, since 2×6672789² = 89052226077042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6672749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21654 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (850473).

Almost surely, 2^6672789 is an apocalyptic number.

It is an amenable number.

6672789 is a deficient number, since it is larger than the sum of its proper divisors (3532887).

6672789 is a wasteful number, since it uses less digits than its factorization.

6672789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43636 (or 43633 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 6672789 is about 2583.1742101531. The cubic root of 6672789 is about 188.2648015113.

The spelling of 6672789 in words is "six million, six hundred seventy-two thousand, seven hundred eighty-nine".