6445043 has 4 divisors (see below), whose sum is σ = 7030968. Its totient is φ = 5859120.

The previous prime is 6445003. The next prime is 6445051. The reversal of 6445043 is 3405446.

6445043 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 6445043 - 2⁶ = 6444979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6445003) 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, 292946 + ... + 292967.

It is an arithmetic number, because the mean of its divisors is an integer number (1757742).

Almost surely, 2^6445043 is an apocalyptic number.

6445043 is a deficient number, since it is larger than the sum of its proper divisors (585925).

6445043 is a wasteful number, since it uses less digits than its factorization.

6445043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585924.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 6445043 is about 2538.7089238430. The cubic root of 6445043 is about 186.0981002530.

The spelling of 6445043 in words is "six million, four hundred forty-five thousand, forty-three".