6396819 has 48 divisors (see below), whose sum is σ = 10681344. Its totient is φ = 3369600.

The previous prime is 6396799. The next prime is 6396827. The reversal of 6396819 is 9186936.

It is not a de Polignac number, because 6396819 - 2⁹ = 6396307 is a prime.

It is a super-2 number, since 2×6396819² = 81838586637522, which contains 22 as substring.

Its product of digits (69984) is a multiple of the sum of its prime factors (108).

It is not an unprimeable number, because it can be changed into a prime (6396869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172869 + ... + 172905.

It is an arithmetic number, because the mean of its divisors is an integer number (222528).

Almost surely, 2^6396819 is an apocalyptic number.

6396819 is a deficient number, since it is larger than the sum of its proper divisors (4284525).

6396819 is a wasteful number, since it uses less digits than its factorization.

6396819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 95 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 6396819 is about 2529.1933496670. The cubic root of 6396819 is about 185.6327880508.

The spelling of 6396819 in words is "six million, three hundred ninety-six thousand, eight hundred nineteen".