2309099 has 4 divisors (see below), whose sum is σ = 2486736. Its totient is φ = 2131464.

The previous prime is 2309081. The next prime is 2309113. The reversal of 2309099 is 9909032.

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 2309099 - 2⁸ = 2308843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2309029) 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, 88799 + ... + 88824.

It is an arithmetic number, because the mean of its divisors is an integer number (621684).

2^2309099 is an apocalyptic number.

2309099 is a deficient number, since it is larger than the sum of its proper divisors (177637).

2309099 is a wasteful number, since it uses less digits than its factorization.

2309099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177636.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 2309099 is about 1519.5719792099. The cubic root of 2309099 is about 132.1744517726.

The spelling of 2309099 in words is "two million, three hundred nine thousand, ninety-nine".