6477947 has 12 divisors (see below), whose sum is σ = 7643016. Its totient is φ = 5473440.

The previous prime is 6477931. The next prime is 6477949. The reversal of 6477947 is 7497746.

It is not a de Polignac number, because 6477947 - 2⁴ = 6477931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6477898 and 6477907.

It is not an unprimeable number, because it can be changed into a prime (6477949) 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 11 ways as a sum of consecutive naturals, for example, 2672 + ... + 4482.

It is an arithmetic number, because the mean of its divisors is an integer number (636918).

Almost surely, 2^6477947 is an apocalyptic number.

6477947 is a deficient number, since it is larger than the sum of its proper divisors (1165069).

6477947 is a wasteful number, since it uses less digits than its factorization.

6477947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 1891 counting only the distinct ones).

The product of its digits is 296352, while the sum is 44.

The square root of 6477947 is about 2545.1811330434. The cubic root of 6477947 is about 186.4142595482.

It can be divided in two parts, 6 and 477947, that multiplied together give a palindrome (2867682).

The spelling of 6477947 in words is "six million, four hundred seventy-seven thousand, nine hundred forty-seven".