6399076 has 12 divisors (see below), whose sum is σ = 11501308. Its totient is φ = 3112992.

The previous prime is 6399059. The next prime is 6399091. The reversal of 6399076 is 6709936.

It can be written as a sum of positive squares in 2 ways, for example, as 2689600 + 3709476 = 1640^2 + 1926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21471 + ... + 21766.

Almost surely, 2^6399076 is an apocalyptic number.

It is an amenable number.

6399076 is a deficient number, since it is larger than the sum of its proper divisors (5102232).

6399076 is a wasteful number, since it uses less digits than its factorization.

6399076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43278 (or 43276 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 6399076 is about 2529.6395000079. The cubic root of 6399076 is about 185.6546178560.

The spelling of 6399076 in words is "six million, three hundred ninety-nine thousand, seventy-six".