2047909 has 8 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 1980000.

The previous prime is 2047883. The next prime is 2047919. The reversal of 2047909 is 9097402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2047909 - 2⁷ = 2047781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8034 + ... + 8284.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

2^2047909 is an apocalyptic number.

It is an amenable number.

2047909 is a deficient number, since it is larger than the sum of its proper divisors (68891).

2047909 is a wasteful number, since it uses less digits than its factorization.

2047909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2047909 is about 1431.0517111551. The cubic root of 2047909 is about 126.9902032247.

The spelling of 2047909 in words is "two million, forty-seven thousand, nine hundred nine".