6377641 has 2 divisors, whose sum is σ = 6377642. Its totient is φ = 6377640.

The previous prime is 6377639. The next prime is 6377689. The reversal of 6377641 is 1467736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 326041 = 2460^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 6377641 - 2¹ = 6377639 is a prime.

Together with 6377639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6377597 and 6377606.

It is not a weakly prime, because it can be changed into another prime (6377621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188820 + 3188821.

It is an arithmetic number, because the mean of its divisors is an integer number (3188821).

Almost surely, 2^6377641 is an apocalyptic number.

It is an amenable number.

6377641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6377641 is an equidigital number, since it uses as much as digits as its factorization.

6377641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 6377641 is about 2525.3991763680. The cubic root of 6377641 is about 185.4470900604.

The spelling of 6377641 in words is "six million, three hundred seventy-seven thousand, six hundred forty-one".