6775989 has 32 divisors (see below), whose sum is σ = 10575360. Its totient is φ = 3816000.

The previous prime is 6775987. The next prime is 6776009. The reversal of 6775989 is 9895776.

It is not a de Polignac number, because 6775989 - 2¹ = 6775987 is a prime.

It is a super-3 number, since 3×6775989³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 6³ + 7 + 7³ + 5⁹ + 9⁴ + 8⁵ + 9⁷ .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6775981) 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 31 ways as a sum of consecutive naturals, for example, 63274 + ... + 63380.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^6775989 is an apocalyptic number.

It is an amenable number.

6775989 is a deficient number, since it is larger than the sum of its proper divisors (3799371).

6775989 is a wasteful number, since it uses less digits than its factorization.

6775989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 952560, while the sum is 51.

The square root of 6775989 is about 2603.0729916773. The cubic root of 6775989 is about 189.2303956607.

It can be divided in two parts, 677 and 5989, that added together give a palindrome (6666).

The spelling of 6775989 in words is "six million, seven hundred seventy-five thousand, nine hundred eighty-nine".