2093309 has 4 divisors (see below), whose sum is σ = 2096220. Its totient is φ = 2090400.

The previous prime is 2093303. The next prime is 2093317. The reversal of 2093309 is 9033902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 931225 + 1162084 = 965^2 + 1078^2 .

It is a cyclic number.

It is not a de Polignac number, because 2093309 - 2²⁰ = 1044733 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 (2093303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (524055).

2^2093309 is an apocalyptic number.

It is an amenable number.

2093309 is a deficient number, since it is larger than the sum of its proper divisors (2911).

2093309 is a wasteful number, since it uses less digits than its factorization.

2093309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 2093309 is about 1446.8272184335. The cubic root of 2093309 is about 127.9217661579.

The spelling of 2093309 in words is "two million, ninety-three thousand, three hundred nine".