6441407 has 4 divisors (see below), whose sum is σ = 7361616. Its totient is φ = 5521200.

The previous prime is 6441389. The next prime is 6441427. The reversal of 6441407 is 7041446.

6441407 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6441407 - 2⁶ = 6441343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460094 + ... + 460107.

It is an arithmetic number, because the mean of its divisors is an integer number (1840404).

Almost surely, 2^6441407 is an apocalyptic number.

6441407 is a deficient number, since it is larger than the sum of its proper divisors (920209).

6441407 is an equidigital number, since it uses as much as digits as its factorization.

6441407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920208.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 6441407 is about 2537.9927107854. The cubic root of 6441407 is about 186.0630976430.

The spelling of 6441407 in words is "six million, four hundred forty-one thousand, four hundred seven".