6399246 has 16 divisors (see below), whose sum is σ = 14626944. Its totient is φ = 1828344.

The previous prime is 6399209. The next prime is 6399251. The reversal of 6399246 is 6429936.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76140 + ... + 76223.

It is an arithmetic number, because the mean of its divisors is an integer number (914184).

Almost surely, 2^6399246 is an apocalyptic number.

6399246 is an abundant number, since it is smaller than the sum of its proper divisors (8227698).

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

6399246 is a wasteful number, since it uses less digits than its factorization.

6399246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152375.

The product of its digits is 69984, while the sum is 39.

The square root of 6399246 is about 2529.6731014105. The cubic root of 6399246 is about 185.6562618957.

The spelling of 6399246 in words is "six million, three hundred ninety-nine thousand, two hundred forty-six".