6477855 has 8 divisors (see below), whose sum is σ = 10364592. Its totient is φ = 3454848.

The previous prime is 6477847. The next prime is 6477857. The reversal of 6477855 is 5587746.

6477855 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6477855 - 2³ = 6477847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215914 + ... + 215943.

It is an arithmetic number, because the mean of its divisors is an integer number (1295574).

Almost surely, 2^6477855 is an apocalyptic number.

6477855 is a deficient number, since it is larger than the sum of its proper divisors (3886737).

6477855 is a wasteful number, since it uses less digits than its factorization.

6477855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431865.

The product of its digits is 235200, while the sum is 42.

The square root of 6477855 is about 2545.1630596093. The cubic root of 6477855 is about 186.4133770570.

The spelling of 6477855 in words is "six million, four hundred seventy-seven thousand, eight hundred fifty-five".