2059909 has 4 divisors (see below), whose sum is σ = 2093740. Its totient is φ = 2026080.

The previous prime is 2059891. The next prime is 2059913. The reversal of 2059909 is 9099502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 801025 + 1258884 = 895^2 + 1122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2059909 - 2¹⁹ = 1535621 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 (2059979) 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 3 ways as a sum of consecutive naturals, for example, 16824 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (523435).

2^2059909 is an apocalyptic number.

It is an amenable number.

2059909 is a deficient number, since it is larger than the sum of its proper divisors (33831).

2059909 is an equidigital number, since it uses as much as digits as its factorization.

2059909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33830.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 2059909 is about 1435.2383077385. The cubic root of 2059909 is about 127.2377590854.

The spelling of 2059909 in words is "two million, fifty-nine thousand, nine hundred nine".