6380657 has 2 divisors, whose sum is σ = 6380658. Its totient is φ = 6380656.

The previous prime is 6380639. The next prime is 6380659. The reversal of 6380657 is 7560836.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5550736 + 829921 = 2356^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 6380657 - 2⁸ = 6380401 is a prime.

It is a super-3 number, since 3×6380657³ (a number of 21 digits) contains 333 as substring.

Together with 6380659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6380659) 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, 3190328 + 3190329.

It is an arithmetic number, because the mean of its divisors is an integer number (3190329).

Almost surely, 2^6380657 is an apocalyptic number.

It is an amenable number.

6380657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6380657 is an equidigital number, since it uses as much as digits as its factorization.

6380657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6380657 is about 2525.9962391104. The cubic root of 6380657 is about 185.4763182280.

The spelling of 6380657 in words is "six million, three hundred eighty thousand, six hundred fifty-seven".