6677889 has 16 divisors (see below), whose sum is σ = 9839232. Its totient is φ = 4007168.

The previous prime is 6677887. The next prime is 6677893. The reversal of 6677889 is 9887766.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6677889 - 2¹ = 6677887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an Ulam number.

6677889 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (614952).

Almost surely, 2^6677889 is an apocalyptic number.

6677889 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6677889 is a deficient number, since it is larger than the sum of its proper divisors (3161343).

6677889 is a wasteful number, since it uses less digits than its factorization.

6677889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736.

The product of its digits is 1016064, while the sum is 51.

The square root of 6677889 is about 2584.1611791837. The cubic root of 6677889 is about 188.3127527741.

The spelling of 6677889 in words is "six million, six hundred seventy-seven thousand, eight hundred eighty-nine".