6477641 has 2 divisors, whose sum is σ = 6477642. Its totient is φ = 6477640.

The previous prime is 6477637. The next prime is 6477671. The reversal of 6477641 is 1467746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 577600 = 2429^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 6477641 - 2² = 6477637 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6477671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3238820 + 3238821.

It is an arithmetic number, because the mean of its divisors is an integer number (3238821).

Almost surely, 2^6477641 is an apocalyptic number.

It is an amenable number.

6477641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6477641 is an equidigital number, since it uses as much as digits as its factorization.

6477641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 6477641 is about 2545.1210187337. The cubic root of 6477641 is about 186.4113242735.

The spelling of 6477641 in words is "six million, four hundred seventy-seven thousand, six hundred forty-one".