2305807397 has 2 divisors, whose sum is σ = 2305807398. Its totient is φ = 2305807396.

The previous prime is 2305807369. The next prime is 2305807409. The reversal of 2305807397 is 7937085032.

2305807397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1957089121 + 348718276 = 44239^2 + 18674^2 .

It is a cyclic number.

It is not a de Polignac number, because 2305807397 - 2¹² = 2305803301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2305803397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152903698 + 1152903699.

It is an arithmetic number, because the mean of its divisors is an integer number (1152903699).

Almost surely, 2^2305807397 is an apocalyptic number.

It is an amenable number.

2305807397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2305807397 is an equidigital number, since it uses as much as digits as its factorization.

2305807397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 2305807397 is about 48018.8233612612. The cubic root of 2305807397 is about 1321.1161734906.

The spelling of 2305807397 in words is "two billion, three hundred five million, eight hundred seven thousand, three hundred ninety-seven".