2663409 has 16 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 1492608.

The previous prime is 2663393. The next prime is 2663429. The reversal of 2663409 is 9043662.

2663409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2663409 - 2⁴ = 2663393 is a prime.

It is a Curzon number.

2663409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2663429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (258552).

2^2663409 is an apocalyptic number.

It is an amenable number.

2663409 is a deficient number, since it is larger than the sum of its proper divisors (1473423).

2663409 is a wasteful number, since it uses less digits than its factorization.

2663409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 2663409 is about 1631.9954044053. The cubic root of 2663409 is about 138.6157633623.

The spelling of 2663409 in words is "two million, six hundred sixty-three thousand, four hundred nine".