6397877 has 4 divisors (see below), whose sum is σ = 6409260. Its totient is φ = 6386496.

The previous prime is 6397871. The next prime is 6397891. The reversal of 6397877 is 7787936.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3418801 + 2979076 = 1849^2 + 1726^2 .

It is a cyclic number.

It is not a de Polignac number, because 6397877 - 2¹⁰ = 6396853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4802 + ... + 5987.

It is an arithmetic number, because the mean of its divisors is an integer number (1602315).

Almost surely, 2^6397877 is an apocalyptic number.

It is an amenable number.

6397877 is a deficient number, since it is larger than the sum of its proper divisors (11383).

6397877 is a wasteful number, since it uses less digits than its factorization.

6397877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382.

The product of its digits is 444528, while the sum is 47.

The square root of 6397877 is about 2529.4024986150. The cubic root of 6397877 is about 185.6430217135.

The spelling of 6397877 in words is "six million, three hundred ninety-seven thousand, eight hundred seventy-seven".