6477971 has 2 divisors, whose sum is σ = 6477972. Its totient is φ = 6477970.

The previous prime is 6477967. The next prime is 6477983. The reversal of 6477971 is 1797746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6477971 - 2² = 6477967 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6477931) 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 as a sum of consecutive naturals, namely, 3238985 + 3238986.

It is an arithmetic number, because the mean of its divisors is an integer number (3238986).

Almost surely, 2^6477971 is an apocalyptic number.

6477971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6477971 is an equidigital number, since it uses as much as digits as its factorization.

6477971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 41.

The square root of 6477971 is about 2545.1858478312. The cubic root of 6477971 is about 186.4144897619.

The spelling of 6477971 in words is "six million, four hundred seventy-seven thousand, nine hundred seventy-one".