6399026 has 8 divisors (see below), whose sum is σ = 9609600. Its totient is φ = 3195828.

The previous prime is 6399023. The next prime is 6399031. The reversal of 6399026 is 6209936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6399023) 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, 1655 + ... + 3941.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200).

Almost surely, 2^6399026 is an apocalyptic number.

6399026 is a deficient number, since it is larger than the sum of its proper divisors (3210574).

6399026 is a wasteful number, since it uses less digits than its factorization.

6399026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 6399026 is about 2529.6296171574. The cubic root of 6399026 is about 185.6541343093.

The spelling of 6399026 in words is "six million, three hundred ninety-nine thousand, twenty-six".