6405798 has 16 divisors (see below), whose sum is σ = 14641920. Its totient is φ = 1830216.

The previous prime is 6405797. The next prime is 6405811. The reversal of 6405798 is 8975046.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405797) 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 7 ways as a sum of consecutive naturals, for example, 76218 + ... + 76301.

It is an arithmetic number, because the mean of its divisors is an integer number (915120).

Almost surely, 2^6405798 is an apocalyptic number.

6405798 is an abundant number, since it is smaller than the sum of its proper divisors (8236122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6405798 is a wasteful number, since it uses less digits than its factorization.

6405798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152531.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 6405798 is about 2530.9677990840. The cubic root of 6405798 is about 185.7196029472.

The spelling of 6405798 in words is "six million, four hundred five thousand, seven hundred ninety-eight".