6403579 has 12 divisors (see below), whose sum is σ = 7926096. Its totient is φ = 5065632.

The previous prime is 6403571. The next prime is 6403601. The reversal of 6403579 is 9753046.

It is not a de Polignac number, because 6403579 - 2³ = 6403571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6403571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1524 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (660508).

Almost surely, 2^6403579 is an apocalyptic number.

6403579 is a deficient number, since it is larger than the sum of its proper divisors (1522517).

6403579 is a wasteful number, since it uses less digits than its factorization.

6403579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446 (or 5433 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 6403579 is about 2530.5293912539. The cubic root of 6403579 is about 185.6981557419.

The spelling of 6403579 in words is "six million, four hundred three thousand, five hundred seventy-nine".