6378877 has 2 divisors, whose sum is σ = 6378878. Its totient is φ = 6378876.

The previous prime is 6378871. The next prime is 6378881. The reversal of 6378877 is 7788736.

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., 5171076 + 1207801 = 2274^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 6378877 - 2¹¹ = 6376829 is a prime.

It is a super-2 number, since 2×6378877² = 81380143562258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6378871) 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 as a sum of consecutive naturals, namely, 3189438 + 3189439.

It is an arithmetic number, because the mean of its divisors is an integer number (3189439).

Almost surely, 2^6378877 is an apocalyptic number.

It is an amenable number.

6378877 is a deficient number, since it is larger than the sum of its proper divisors (1).

6378877 is an equidigital number, since it uses as much as digits as its factorization.

6378877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 46.

The square root of 6378877 is about 2525.6438783011. The cubic root of 6378877 is about 185.4590692962.

The spelling of 6378877 in words is "six million, three hundred seventy-eight thousand, eight hundred seventy-seven".