6394998 has 16 divisors (see below), whose sum is σ = 12838896. Its totient is φ = 2123520.

The previous prime is 6394981. The next prime is 6395047. The reversal of 6394998 is 8994936.

It is a happy number.

It is a d-powerful number, because it can be written as 6⁴ + 3¹³ + 9 + 4⁷ + 9 + 9⁷ + 8 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 3582.

It is an arithmetic number, because the mean of its divisors is an integer number (802431).

Almost surely, 2^6394998 is an apocalyptic number.

6394998 is an abundant number, since it is smaller than the sum of its proper divisors (6443898).

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

6394998 is a wasteful number, since it uses less digits than its factorization.

6394998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its digits is 419904, while the sum is 48.

The square root of 6394998 is about 2528.8333278411. The cubic root of 6394998 is about 185.6151715142.

The spelling of 6394998 in words is "six million, three hundred ninety-four thousand, nine hundred ninety-eight".