6446799 has 12 divisors (see below), whose sum is σ = 9539712. Its totient is φ = 4192800.

The previous prime is 6446789. The next prime is 6446801. The reversal of 6446799 is 9976446.

It is not a de Polignac number, because 6446799 - 2⁵ = 6446767 is a prime.

It is a super-2 number, since 2×6446799² = 83122434692802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8367 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (794976).

Almost surely, 2^6446799 is an apocalyptic number.

6446799 is a deficient number, since it is larger than the sum of its proper divisors (3092913).

6446799 is a wasteful number, since it uses less digits than its factorization.

6446799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518 (or 17515 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 6446799 is about 2539.0547453728. The cubic root of 6446799 is about 186.1149999897.

The spelling of 6446799 in words is "six million, four hundred forty-six thousand, seven hundred ninety-nine".