6440833 has 8 divisors (see below), whose sum is σ = 7517952. Its totient is φ = 5402976.

The previous prime is 6440831. The next prime is 6440873. The reversal of 6440833 is 3380446.

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

It is a cyclic number.

It is not a de Polignac number, because 6440833 - 2¹ = 6440831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6440831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9460 + ... + 10117.

It is an arithmetic number, because the mean of its divisors is an integer number (939744).

Almost surely, 2^6440833 is an apocalyptic number.

It is an amenable number.

6440833 is a deficient number, since it is larger than the sum of its proper divisors (1077119).

6440833 is a wasteful number, since it uses less digits than its factorization.

6440833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19631.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6440833 is about 2537.8796267751. The cubic root of 6440833 is about 186.0575707248.

The spelling of 6440833 in words is "six million, four hundred forty thousand, eight hundred thirty-three".