2309087 has 4 divisors (see below), whose sum is σ = 2519016. Its totient is φ = 2099160.

The previous prime is 2309081. The next prime is 2309113. The reversal of 2309087 is 7809032.

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

It is a cyclic number.

It is not a de Polignac number, because 2309087 - 2⁶ = 2309023 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309081) 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, 104948 + ... + 104969.

It is an arithmetic number, because the mean of its divisors is an integer number (629754).

2^2309087 is an apocalyptic number.

2309087 is a deficient number, since it is larger than the sum of its proper divisors (209929).

2309087 is a wasteful number, since it uses less digits than its factorization.

2309087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209928.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2309087 is about 1519.5680307245. The cubic root of 2309087 is about 132.1742228094.

Subtracting 2309087 from its reverse (7809032), we obtain a palindrome (5499945).

The spelling of 2309087 in words is "two million, three hundred nine thousand, eighty-seven".