2303712009 has 15 divisors (see below), whose sum is σ = 3441992983. Its totient is φ = 1535520024.

The previous prime is 2303712001. The next prime is 2303712017. The reversal of 2303712009 is 9002173032.

The square root of 2303712009 is 47997.

It is a perfect power (a square), and thus also a powerful number.

2303712009 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2303712001) and next prime (2303712017).

It can be written as a sum of positive squares in only one way, i.e., 2296805625 + 6906384 = 47925^2 + 2628^2 .

It is not a de Polignac number, because 2303712009 - 2³ = 2303712001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2303712001) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 429307 + ... + 434639.

Almost surely, 2^2303712009 is an apocalyptic number.

2303712009 is the 47997-th square number.

2303712009 is the 23999-th centered octagonal number.

It is an amenable number.

2303712009 is a deficient number, since it is larger than the sum of its proper divisors (1138280974).

2303712009 is an frugal number, since it uses more digits than its factorization.

2303712009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10678 (or 5336 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The cubic root of 2303712009 is about 1320.7158668638.

The spelling of 2303712009 in words is "two billion, three hundred three million, seven hundred twelve thousand, nine".