2309667397 has 2 divisors, whose sum is σ = 2309667398. Its totient is φ = 2309667396.

The previous prime is 2309667359. The next prime is 2309667403. The reversal of 2309667397 is 7937669032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1868919361 + 440748036 = 43231^2 + 20994^2 .

It is a cyclic number.

It is not a de Polignac number, because 2309667397 - 2¹¹ = 2309665349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309667197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154833698 + 1154833699.

It is an arithmetic number, because the mean of its divisors is an integer number (1154833699).

Almost surely, 2^2309667397 is an apocalyptic number.

It is an amenable number.

2309667397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309667397 is an equidigital number, since it uses as much as digits as its factorization.

2309667397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 52.

The square root of 2309667397 is about 48058.9991260742. Note that the first 3 decimals coincide. The cubic root of 2309667397 is about 1321.8529603093.

The spelling of 2309667397 in words is "two billion, three hundred nine million, six hundred sixty-seven thousand, three hundred ninety-seven".