6395988 has 12 divisors (see below), whose sum is σ = 14924000. Its totient is φ = 2131992.

The previous prime is 6395981. The next prime is 6396053. The reversal of 6395988 is 8895936.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6395988² = 81817324992288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6395981) 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, 266488 + ... + 266511.

Almost surely, 2^6395988 is an apocalyptic number.

It is an amenable number.

6395988 is an abundant number, since it is smaller than the sum of its proper divisors (8528012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6395988 is a wasteful number, since it uses less digits than its factorization.

6395988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533006 (or 533004 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 6395988 is about 2529.0290627037. The cubic root of 6395988 is about 185.6247492883.

The spelling of 6395988 in words is "six million, three hundred ninety-five thousand, nine hundred eighty-eight".