2011704309 has 32 divisors (see below), whose sum is σ = 3022842240. Its totient is φ = 1322125056.

The previous prime is 2011704263. The next prime is 2011704311. The reversal of 2011704309 is 9034071102.

It is not a de Polignac number, because 2011704309 - 2⁷ = 2011704181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011704349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599374 + ... + 602720.

It is an arithmetic number, because the mean of its divisors is an integer number (94463820).

Almost surely, 2^2011704309 is an apocalyptic number.

It is an amenable number.

2011704309 is a deficient number, since it is larger than the sum of its proper divisors (1011137931).

2011704309 is a wasteful number, since it uses less digits than its factorization.

2011704309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2011704309 is about 44852.0268103906. The cubic root of 2011704309 is about 1262.3740219231.

The spelling of 2011704309 in words is "two billion, eleven million, seven hundred four thousand, three hundred nine".