6438077 has 2 divisors, whose sum is σ = 6438078. Its totient is φ = 6438076.

The previous prime is 6438059. The next prime is 6438079. The reversal of 6438077 is 7708346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3728761 + 2709316 = 1931^2 + 1646^2 .

It is a cyclic number.

It is not a de Polignac number, because 6438077 - 2¹² = 6433981 is a prime.

Together with 6438079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6438079) 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, 3219038 + 3219039.

It is an arithmetic number, because the mean of its divisors is an integer number (3219039).

Almost surely, 2^6438077 is an apocalyptic number.

It is an amenable number.

6438077 is a deficient number, since it is larger than the sum of its proper divisors (1).

6438077 is an equidigital number, since it uses as much as digits as its factorization.

6438077 is an odious number, because the sum of its binary digits is odd.

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

The square root of 6438077 is about 2537.3365957239. The cubic root of 6438077 is about 186.0310292396.

The spelling of 6438077 in words is "six million, four hundred thirty-eight thousand, seventy-seven".