2309648697 has 12 divisors (see below), whose sum is σ = 3365684244. Its totient is φ = 1526138880.

The previous prime is 2309648659. The next prime is 2309648699. The reversal of 2309648697 is 7968469032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1162878201 + 1146770496 = 34101^2 + 33864^2 .

It is not a de Polignac number, because 2309648697 - 2¹⁰ = 2309647673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2309648699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1134504 + ... + 1136537.

It is an arithmetic number, because the mean of its divisors is an integer number (280473687).

Almost surely, 2^2309648697 is an apocalyptic number.

It is an amenable number.

2309648697 is a deficient number, since it is larger than the sum of its proper divisors (1056035547).

2309648697 is a wasteful number, since it uses less digits than its factorization.

2309648697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271160 (or 2271157 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 2309648697 is about 48058.8045731477. The cubic root of 2309648697 is about 1321.8493928812.

The spelling of 2309648697 in words is "two billion, three hundred nine million, six hundred forty-eight thousand, six hundred ninety-seven".