2359309 has 4 divisors (see below), whose sum is σ = 2363680. Its totient is φ = 2354940.

The previous prime is 2359307. The next prime is 2359319. The reversal of 2359309 is 9039532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2359309 - 2¹ = 2359307 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 3⁵ + 5⁷ + 9² + 3¹¹ + 0 + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2359303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239 + ... + 2500.

It is an arithmetic number, because the mean of its divisors is an integer number (590920).

2^2359309 is an apocalyptic number.

It is an amenable number.

2359309 is a deficient number, since it is larger than the sum of its proper divisors (4371).

2359309 is an equidigital number, since it uses as much as digits as its factorization.

2359309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 2359309 is about 1536.0042317650. The cubic root of 2359309 is about 133.1256091870.

The spelling of 2359309 in words is "two million, three hundred fifty-nine thousand, three hundred nine".