6477755 has 4 divisors (see below), whose sum is σ = 7773312. Its totient is φ = 5182200.

The previous prime is 6477739. The next prime is 6477767. The reversal of 6477755 is 5577746.

6477755 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.

It is not a de Polignac number, because 6477755 - 2⁴ = 6477739 is a prime.

It is a super-2 number, since 2×6477755² = 83922619680050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647771 + ... + 647780.

It is an arithmetic number, because the mean of its divisors is an integer number (1943328).

Almost surely, 2^6477755 is an apocalyptic number.

6477755 is a deficient number, since it is larger than the sum of its proper divisors (1295557).

6477755 is a wasteful number, since it uses less digits than its factorization.

6477755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295556.

The product of its digits is 205800, while the sum is 41.

The square root of 6477755 is about 2545.1434144268. The cubic root of 6477755 is about 186.4124178180.

Subtracting from 6477755 its reverse (5577746), we obtain a palindrome (900009).

The spelling of 6477755 in words is "six million, four hundred seventy-seven thousand, seven hundred fifty-five".