6677909 has 4 divisors (see below), whose sum is σ = 7631904. Its totient is φ = 5723916.

The previous prime is 6677903. The next prime is 6677921. The reversal of 6677909 is 9097766.

6677909 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9097766 = 2 ⋅4548883.

It is a cyclic number.

It is not a de Polignac number, because 6677909 - 2⁴ = 6677893 is a prime.

It is a super-2 number, since 2×6677909² = 89188937224562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6677909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677903) 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, 476987 + ... + 477000.

It is an arithmetic number, because the mean of its divisors is an integer number (1907976).

Almost surely, 2^6677909 is an apocalyptic number.

It is an amenable number.

6677909 is a deficient number, since it is larger than the sum of its proper divisors (953995).

6677909 is an equidigital number, since it uses as much as digits as its factorization.

6677909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953994.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 6677909 is about 2584.1650489084. The cubic root of 6677909 is about 188.3129407702.

The spelling of 6677909 in words is "six million, six hundred seventy-seven thousand, nine hundred nine".