6405043 has 2 divisors, whose sum is σ = 6405044. Its totient is φ = 6405042.

The previous prime is 6405031. The next prime is 6405053. The reversal of 6405043 is 3405046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6405043 - 2⁵ = 6405011 is a prime.

It is not a weakly prime, because it can be changed into another prime (6405013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202521 + 3202522.

It is an arithmetic number, because the mean of its divisors is an integer number (3202522).

Almost surely, 2^6405043 is an apocalyptic number.

6405043 is a deficient number, since it is larger than the sum of its proper divisors (1).

6405043 is an equidigital number, since it uses as much as digits as its factorization.

6405043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 6405043 is about 2530.8186422579. The cubic root of 6405043 is about 185.7123062342.

The spelling of 6405043 in words is "six million, four hundred five thousand, forty-three".